Agriculture is the art of cultivating the ground, more especially with the plough and in large areas or fields, in order to raise grain and other crops for man and beast; including the art of preparing the soil, sowing and planting seeds, removing the crops, and also the raising and feeding of cattle or other live stock. This art is the basis of all other arts, and in all countries coeval with the first dawn of civilization. At how remote a period it must have been successfully practised in Egypt, Mesopotamia, and China we have no means of knowing, but archaeologists have found evidence of agriculture being practised around 7000 BC. Egypt was renowned as a corn country in the time of the Jewish patriarchs, who themselves were keepers of flocks and herds rather than tillers of the soil. Naturally very little is known of the methods and details of agriculture in early times, though field archaeologists at Butser Ancient Farm in Hampshire have been conducting experiments for some years.
Among the ancient Greeks the implements of agriculture were very few and simple. Hesiod, who wrote a poem on agriculture as early as the eighth century BC, mentions a plough consisting of three parts, the share-beam, the draught-pole, and the plough-tail, but antiquarians are not agreed as to its exact form. The ground received three ploughings, one in autumn, another in spring, and a third immediately before sowing the seed. Manures were applied, and the advantage of mixing soils, as sand with clay or clay with sand, was understood. Seed was sown by hand, and covered with a rake. Grain was reaped with a sickle, bound in sheaves, thrashed, then winnowed by wind, laid in chests, bins, or granaries, and taken out as wanted by the family, to be ground.
Agriculture was highly esteemed among the ancient Romans. Cato, the censor, who was celebrated as a statesman, orator, and general, derived his highest honours from having written a voluminous work on agriculture. In his Georgics Virgil has thought the subject of agriculture worthy of being treated in the most graceful and harmoniousverse. The Romans used a great many different implements of agriculture. The plough is represented by Cato as of two kinds, one for strong, the other for light soils. Yarro mentions one with two mould-boards, with which, he says, 'when they plough, after sowing the seed, they are said to ridge'. Pliny mentions a plough with one mould-board, and others with a coulter, of which he says there were many kinds. Fallowing was a practice rarely deviated from by the Romans. In most cases a fallow and a year's crop succeeded each other. Manure was collected from nearly or quite as many sources as have been resorted to by the moderns. Irrigation on a large scale was applied both to arable and grasslands.
The Romans introduced their agricultural knowledge among the Britons, though it is known that the Britons were already practising agriculture, and during the most flourishing period of the Roman occupation large quantities of corn were exported from Britain to the Continent. During the time that the Angles and Saxons were extending their conquests over the country agriculture may have been neglected; but afterwards it was practised with some success among the Anglo-Saxon population, especially, as was generally the case during the middle ages, on lands belonging to the church. Swine formed at this time a most important portion of the live stock, finding plenty of oak and beech mast to eat.
The feudal system introduced by the Normans, though beneficial in some respects as tending to ensure the personal security of individuals, operated powerfully against progress in agricultural improvements. War and the chase, the two ancient and deadliest foes of husbandry, formed the most prominent occupations of the Norman princes and nobles. Thriving villages and smiling fields were converted into deer forests, vexatious imposts were laid on the farmers, and the serfs had no interest in the cultivation of the soil. But the monks of every monastery retained such of their lands as they could most conveniently take charge of, and these they cultivated with great care, under their own inspection, and frequently with their own hands. The various operations of husbandry, such as manuring, ploughing, sowing, harrowing, reaping, thrashing, winnowing, etc, are incidentally mentioned by the writers of those days; but it is impossible to collect from them a definite account of the manner in which those operations were performed.
The first English treatise on husbandry and the best of the early works on the subject was published in the reign of Henry VIII in 1534, by Sir A Fitzherbert, judge of the Common Pleas. It is entitled the Book of Husbandry, and contains directions for draining, clearing, and inclosing a farm, for enriching the soil, and rendering it fit for tillage. Lime, marl, and fallowing are strongly recommended. The subject of agriculture attained some prominence during the reign of Elizabeth I. The principal writers of that period were Tusser, Googe, and Sir Hugh Platt. Tusser's Five Hundredth Points of Good Husbandry (first complete edition published in 1580) conveys much useful instruction in metre, but few works of this time contain much that is original or valuable.
The first half of the seventeenth century produced no systematic work on agriculture, though several on different branches of the subject. About 1645 the field cultivation of red clover was introduced into England, the merit of this improvement being due to Sir Richard Weston, author of a Discourse on the Husbandry of Brabant and Flanders. The Dutch had devoted much attention to the improvement of winter roots, and also to the cultivation of clover and other artificial grasses, and the farmers and proprietors of England soon saw the advantages to be derived from their introduction. The cultivation of clover soon spread, and Sir Richard Weston seems also to have introduced turnips. Potatoes had been introduced during the latter part of the sixteenth century, but were not for long in general cultivation. A number of writers on agriculture appeared in England during the Commonwealth, the most important works on the subject being Blythe's Improver Improved and Hartlib's Legacy. The former writer speaks of a rotation, or rather alternation of crops, and well knew the use of lime, as also of other manures. In the eighteenth century the first name of importance in British agriculture is that of Jethro Tull, a gentleman of Berkshire, who began to drillwheat and other crops about the year 1701, and whose Horse-hoeing Husbandry was published in 1731.
Jethro Tull was a great advocate of the system of sowing crops in rows or drills with an interval between every two or three rows wide enough to allow of ploughing or hoeing to be carried on. After the time of Jethro Tull's publication no great alteration in British agriculture took place, until Robert Bakewell and others effected some important improvements in the breeds of cattle, sheep, and swine, in the latter half of the eighteenth century. The raising and maintenance of live stock, especially of sheep, was a characteristic of English farming from a very early time, and for several centuries the country had almost a monopoly in the supply of wool. To Bakewell we owe the breed of Leicestersheep. By the end of the nineteenth century it was a common practice to alternate green crops with grain crops, instead of exhausting the land with a number of successive crops of corn. A well-known writer on agriculture at this period, and one who did a great deal of good in diffusing a knowledge of the subject, was Arthur Young.
Scotland was for a long time behind England in agricultural progress. Great progress was made during the eighteenth century, however, especially in the latter half of it, turnips being introduced as a field-crop, and new implements such as the swing-plough and the thrashing-machine coming into general use. The construction of good roads through the country also gave agriculture a great impulse. During the wars caused by the French revolution of 1795 to 1814 the high price of agricultural produce led to an extraordinary improvement in agriculture all over Britain. The establishment of the institution called the National Board of Agriculture was also of very great service to British husbandry at this period. Though a private association it was assisted by an annual parliamentary grant, and prizes were given by it for the encouragement of experiments and improvements in agriculture. It existed from 1793 to 1816.
Among other societies which have greatly furthered the progress of agriculture in Britain, the chief are the Royal Agricultural Society of England, established in 1838; the Highland and Agricultural Society of Scotland, founded in 1783; and the Royal Agricultural Society of Ireland, instituted in 1841. The objects of these and similar societies were such as the following: to encourage the introduction of improvements in agriculture; to encourage the improvement of agricultural implements and farm buildings; the application of chemistry to agriculture; the destruction of insects injurious to vegetation; to promote the discovery and adoption of new varieties of grain, or other useful vegetables; to collect information regarding the management of woods, plantations, and fences; to improve the education of those supported by the cultivation of the soil; to improve the veterinary art; to improve the breeds of live stock, etc. Shows are held, at which prizes are distributed for live stock, implements, and farm produce.
Through the efforts of the above-mentioned and other societies, the investigations of scientific men, the general diffusion of knowledge among all classes, and the necessity of competing with producers in foreign countries, agriculture made vast strides in Britain during the nineteenth century. Among the chief improvements were deep ploughing and thoroughdraining By the introduction of new or improved implements the labour necessary to the carrying out of agricultural operations was greatly diminished, as by the steam thrashing-machine, the steam-plough, and the reaping-machine. The nineteenth century saw also the introduction of chemistry into agriculture in Britain. The organization of plants, the primary elements of which they are composed, the food on which they live, and the constituents of soils, were all investigated, and most important results obtained particularly with regard to manures and rotations. Artificial manures, in great variety to supply the elements wanted for plant growth, came into common use at the end of the nineteenth century, not only increasing the produce of lands previously cultivated, but extending the limits of cultivation itself. An improvement in all kinds of stock became more and more general, feeding was conducted on more scientific principles, and improved varieties of plants used as field crops were introduced at the same time. At the end of the nineteenth century was introduced the system of ensilage for preserving fodder in a green state. However, by the start of the 20th century writers were proclaiming that, chiefly owing to foreign competition, agriculture had become a very unprofitable industry in Britain.
It is only since the nineteenth century that much progress was made in perfecting implements and machinery for cultivating the soil, sowing seed, drilling, rolling, hoeing, reaping, digging, etc. The first application of steam to ploughing dates from 1770, when Richard Edgeworth took out a patent for a steam ploughing machine, but it was 1852 before such application proved of any economic value. As early as 1829 a reaping-machine was invented by the Reverend Mr. Bell of Carmylie, Forfarshire, which, in an improved form, was still in use at the start of the twentieth century when numerous mowing and reaping-machines of ingenious construction were also introduced, many of which not only cut down the grain, but also bind it up into sheaves. At the start of the twentieth century steam was extensively used as a motive power in thrashing, in chaff-cutting, turnip-slicing, and even in churning. Only to be replaced after the invention of the combustion engine with petrol-power. Mechanisation led to the enlargement of fields, with small fields being amalgamated by the destruction of separating hedgerows to enable mechanical tractors and other farm vehicles to operate efficiently. The effect upon wildlife in Britain was devastating, and public concern started to grow.
The Second World War revolutionized agriculture in Britain, and led to the development of intensive farming techniques known as 'factory farming' and new anonymous breeds of livestock being developed which mature very quickly. During the later half of the twentieth century the public in Britain rebelled against the inhumanity of intensive animal husbandry, typified by 'battery hens' in which thousands of hens are kept in individual tiny cages within massive warehouses, unable to stretch let alone move around, and free-range or more traditional animal husbandry started to reappear in commercial agriculture.
The twentieth century also saw the wide scale introduction of chemical fertilizers and insecticides, many of which were harmful to the consumers and from a public backlash emerged a return to traditional farming, known as organic farming. Research Agriculture
Allegiance (from the Latin alligare, to bind), according to Blackstone, is 'the tie or ligamen which binds the subject to the sovereign in return for that protection which the sovereign affords the subject,' or, generally, the obedience which every subject or citizen owes to the government of his country. It used to be the doctrine of the English law that natural-born subjects owe an allegiance which is intrinsic and perpetual, and which cannot be divested by any act of their own; but since at least the end of the 19th century this was no longer the case. Aliens owe a temporary or local allegiance to the government under which they for the time reside. A usurper in undisturbed possession of the crown is entitled to allegiance; and thus treasons against Henry VI were punished in the reign of Edward IV, though the former had, by act of Parliament, been declared a usurper. Research Allegiance
Betrothment is a mutual promise or contract between two parties, by which they bind themselves to marry. In ancient times it was attended with the exchanging of rings, joining hands and kissing in the presence of witnesses. Since a betrothment is a contract, it may be subject to litigation. Research Betrothment
The meeting of the Long Parliament (as it was afterwards called) in November 1640 ended the great days of the English monarchy, and sowed the seeds for the English Civil War. The Commons were determined on reform; they meant to put an end to the king's unconstitutional methods in both Church and State. Charles I himself, though he seldom faced facts, saw that some concessions would be necessary. But a real settlement was not achieved, chiefly because tempers were rising and the atmosphere soon became that of a revolution. Charles was partly to blame. He had no real desire for a lasting understanding with Parliament, and his shifty character aroused general distrust. But he found that the more he gave way to Parliament, the more it demanded. John Pym, a squire of Somerset, was the acknowledged leader of the Commons.
His enemies nicknamed him 'King Pym'. He was 'the first great popular organiser', for he used the press, the petition, and even the platform to support his cause. He now led the attack on the chief instruments of the late personal government. The judges who had upheld Charles's financial exactions in the Courts were arrested and imprisoned, and so was Archbishop Laud, who was beheaded in 1645. But the principal victim was Strafford. He was charged with having tried to 'subvert the fundamental laws and government of England and Ireland, and instead thereof to introduce an in March arbitrary and tyrannical government against law'. 1641 he was brought to Westminster Hall to be tried for high treason. But his accusers were at once faced with a difficult point. Strafford may have tried to 'subvert the laws'; but treason meant treason to the king, and had Strafford been a traitor to Charles? It was difficult to prove that he had, and as the trial proceeded it became clear that the verdict would be Not Guilty. But the Puritan majority in the House was determined that Strafford should die. Parliament therefore passed a special Bill of Attainder, condemning the minister to death without trial.
The Lords passed the Bill of Attainder, and it remained for the king to give or to withhold his consent. Some may think that it was Charles's duty to risk his life to defend Strafford. But the mob raged round Whitehall, howling for blood. Charles feared for the safety of the queen and his children, and he gave way. ' If my own person only were in danger', he told the Council, with tears in his eyes, 'I would gladly venture it to save Lord Strafford's life.' Three days later the earl was led to his execution in May 1641 in the presence of a crowd of 200000 people who had come to witness the end of 'Black Tom Tyrant'. No man ever died more bravely. 'I thank my God', he said, as he prepared to die, 'I am not afraid of death, but do as cheerfully put off my doublet at this time as ever I did when I went to bed.' The executioner offered to cover his eyes with a handkerchief. 'Thou shalt not bind my eyes.' said Strafford, 'for I will see it done.' And so he placed his head upon the block.
His misfortune, wrote Laud, was that 'he served a mild and gracious prince, who knew not how to be, or be made great'. That summerParliament was busy passing a number of Acts intended to make absolute government impossible for the future. One Act declared that the presentParliament could not be dissolved without its own consent; another - the Triennial Act - that in future Parliaments should be Called every three years. The three Courts by which the king and Laud had carried out their religious and financial measures were abolished - the Star Chamber, the Court of High Commission, and the Council of the North. Finally Ship-Money and other arbitrary forms of taxation were declared illegal. These abolitions of the year 1641 were the permanent, constructive work of the Puritan revolution; nor were the institutions then destroyed restored with the monarchy in 1660. Meanwhile another Bill had come up for discussion. A petition was presented to Parliament praying for the ending of episcopacy (that is, the rule of the Church by bishops) 'in all its roots and branches'.
The thorough-going Puritan members considered the petition, and a 'Root-and-Branch' Bill in 1641 was prepared, but it fell through. For now a new factor came into play. Hitherto a large majority, both of Lords and Commons, had been united in their opposition to the king. But this Bill divided parliamentarians for the first time. There were many who began to fear extremes; and a moderate party now sprang up. It was out of this debate on the Root-and- Branch Bill that the germs of the future Roundhead and Cavalier parties were formed. The extremists - the Roundheads - included Pym, Hampden, and Oliver Cromwell. The chief figures on the other side were LordFalkland and Sir Edward Hyde, afterwards the famous Earl of Clarendon, the future Chancellor and historian. Parliament adjourned for six months, but met again at the end of October. It had no sooner assembled than terrible news arrived from Ireland. Now that the stern hand of Strafford was withdrawn, the crushed Irish had risen against their lords. There was a sudden and horrible rebellion thousands of Protestants were massacred in cold blood. When this news was received in London it only served to increase the Puritanfury. Meanwhile the Commons drew up a Grand Remonstrance in November 1641, in which they recited the past acts of the king and his servants to which they objected - there were 201 items - and stated a programme for the future. Some of its clauses prayed the king to reduce the power of the bishops and to remove 'oppressions in religion'. Another clause asked His Majesty to employ ministers 'such as the Parliament may have cause to confide in' - which in later times solved the problem of disputes between king and Parliament.
All this shows that Parliament had considerably advanced its demands. During the months from November 1640 to September 1641 they, had succeeded in placing constitutional checks on the king's power. From November 1641 to August 1642 they were bent on seizing control of both Church and State, until they forced Charles to reply: ' If I granted your demands, I should be no more than the merephantom of a king.' The Grand Remonstrance was passed by a majority of only eleven - a fact which illustrates the growth of the anti-Puritan party.
The situation, at the end of 1641, was dangerous in the extreme. On the one hand the queen and the swaggering ' Cavaliers' of the Court were urging Charles to strike at King Pym and his fellow leaders before it was too late. On the other hand, London was a stronghold of Puritanism, and it was the London merchants who had felt the weight of Charles's taxation most heavily. The London ' prentices' and the king's swordsmen were itching to get at one another's throats. Never the less Pym proceeded steadily on his way. He was determined to deprive the king of the command of the militia; for it was obvious that if the Irish rebellion was to be crushed a militia must be called out. And once Charles had command of the national armed forces, would he not use them to crush Parliament and destroy English liberty for ever? Pym had no doubt that he would. A Militia Bill was therefore brought in, and - contrary to all English law and custom - it took the command of the military forces out of the king's hands. To this Charles of course refused his consent.
Early in January 1642 he took the queen's advice, and instructed the Attorney- General to impeach Pym, Hampden, and three other leading members of the Commons. The members were alarmed, but Charles promised them 'on the word of a king' that no violence should be done them. The next day - the 4th of January 1642 - he went down to the House with 400 swordsmen. He left his guard at the door, and walked in accompanied only by Prince Rupert, his German nephew. But the five members, warned of his intention, had fled by river. There was a dead silence as the king looked round. He asked the Speaker, Lenthall, where the missing members were. 'I have neither eyes to see', Lenthall replied, 'nor tongue to speak in this place, but as this House shall direct me.' There was another pause as Charles scanned the benches. 'I see', he said at last, 'all the birds are flown. I do expect you will send them to me as soon as they shall return hither.' Then, amid cries of 'Privilege, privilege', he walked out. By this revolutionary act the king had outlawed himself. All hope of reconciliation being now past, he determined to try the issue of war. He left his capital on the 10th of January, sent the queen out of the country, and took up his quarters at York. Parliament claimed the control of the militia and secured the command of the fleet. During the spring and summer of 1642 both sides were busy raising troops. The great strength of the Puritan cause was London. The city contained a tenth of the population of England - 500000 out of five million. The number of troops which London provided was more than sufficient to quell any Royalist opposition in the surrounding country. The London 'train-bands' therefore protected the Puritan leaders during the eight months that the king was gathering his army in the north - January to August 1642. And so the English Civil War started. Research Long Parliament
Soil erosion is the wearing away and redistribution of the Earth's soil layer. It is caused by the action of water, wind, and ice, and also by improper methods of agriculture. If unchecked, soil erosion results in the formation of deserts (a process known as desertification). It has been estimated that 20% of the world's cultivated topsoil was lost between 1950 and 1990. If the rate of erosion exceeds the rate of soilformation (from rock and decomposing organic matter), then the land will become infertile.
The removal of forests (the process of deforestation) or other vegetation often leads to serious soil erosion, because plant roots bindsoil, and without them the soil is free to wash or blow away, as in the American dust bowl. The effect is worse on hillsides, and there has been devastating loss of soil where forests have been cleared from mountainsides, as in Madagascar. Improved agricultural practices such as contour ploughing are needed to combat soil erosion. Windbreaks, such as hedges or strips planted with coarse grass, are valuable, and organic farming can reduce soil erosion by as much as 75%. Soil degradation and erosion are becoming as serious as the loss of the rainforest. Research Soil Erosion
Tempera is a mode or process of painting, the term especially being applied to early Italian painting, in which egg and glue were used to bind the colours. Research Tempera
Restiaceae is a family of plants allied to the Cyperaceae or sedges, and confined to the southern hemisphere, being found chiefly in South Africa and Australia. They are herbs or under shrubs, with matted roots which bind shifting soil, hard wiry stems, simple narrow leaves, the sheaths of which are usually split, and inconspicuous brown rush-like panicles of flowers. Research Restiaceae
Albumin is one of the three main components of plasma. The other two proteins are globulins and fibrinogen. All three proteins are manufactured by the liver. These three proteins circulate in plasma and act as carriers for small molecules. Albumin, the most plentiful, is similar in texture to egg whites and gives blood its gummy texture. It is soluble in water and coagulable by heat. The globulins, three in number: alpha, beta, and gamma. They are divided on the basis of electrophoretic mobility. The globulins transport certain proteins. They number half the albumin proteins found in plasma. The globulin proteins are insoluble in water, soluble in saline solutions, and coagulable by heat. Globulins are also found in cerebrospinal fluid. Gamma globulins are the antibodies of the blood, giving immunity to disease. Only 3% of plasma is made up of fibrinogen. It is an important link in the chain of reactions that leads to blood clotting (coagulation). It uses the enzyme thrombin to form a web of fine protein fibres, called fibrin, that bindblood cells together, creating a bridge over which injured tissue can rebuild itself while blood continues to flow underneath. As an important factor to coagulation, it is often referred to as factorI. Research Albumin
Fibrinogen is one of the three main components of plasma. The other two being globulins and albumin. Only 3% of plasma is made up of fibrinogen. It is an important link in the chain of reactions that leads to blood clotting. It uses the enzyme thrombin to form a web of fine protein fibres, called fibrin, that bindblood cells together, creating a bridge over which injured tissue can rebuild itself while blood continues to flow underneath. As an important factor to coagulation, it is often referred to as factorI. Research Fibrinogen
Plasma, made of about 92% water, is the blood's solvent. It is the liquid part of the blood, or blood minus cells, containing proteins, minerals, and salts. Its main components are the three proteins: albumin, globulins, and fibrinogen, all of which are manufactured by the liver. These three proteins circulate in plasma and act as carriers for small molecules. Salts, minerals, sugars, fats, and proteins, all important nutrients, are transported through plasma. All of the chemicals needed by cells to stay alive are brought to them by the blood. At the same time, bicarbonates in the plasma act as a filter to remove poisonous waste to the kidneys. Albumin, the most plentiful, is similar to egg whites and gives blood its gummy texture. The globulins, three in number: alpha, beta, and gamma, transport certain proteins. They number half the albumin proteins found in plasma. Gamma globulins are the antibodies of the blood, giving immunity to disease. Only 3% of plasma is made up of fibrinogen. It is an important link in the chain of reactions that leads to blood clotting. It forms a web of fine protein fibres that bindblood cells together, creating a bridge over which injured tissue can rebuild itself while blood continues to flow underneath. Research Plasma
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Agriculture
