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Under the conditions in which we see them in that Show, a single month would be sufficient to produce almost their complete destruction; for even a single week, which is the usual duration of their confinement, affects them so much as to render a large proportion of them unhealthy.

      Every one knows how apt cavalry horses are to sicken and die off during a campaign. Every one has heard of the fearful ravages amongst the horses of the Allied armies during the Crimean war, when many companies were dismounted owing to this mortality.

      Let us now transport ourselves in thought into the middle of those immense steppes where vast and innumerable herds of herbivorous animals are being bred for our supply, and consider what will be the effects on their health and life if they should be afflicted with a scarcity of forage, in consequence of this long dry summer.

      It is unnecessary to say that there exist in Russia, in Hungary, in Australia, in North and South America, and in many other parts of the globe, large tracts of country which are still uninhabited, whose uncultivated soil supplies with food great numbers of sheep and cattle. These spacious tracts, known as moorlands or steppes, particularly abound in Russia, on the banks of the Wolga, the Don, the Dnieper; in Hungary, on the banks of the Danube; and also in South America, in the republics of Venezuela, New Granada, Columbia, &c.

      Now, in hot and rainy seasons these steppes teem with rich and luxuriant verdure; the plants growing up in the marshes are prolific and abundant, and even those parts of the wild moors which produce nothing but heath are capable of feeding and fattening flocks and herds.

      Under conditions so auspicious as these, animals may still suffer, but in what way? By excess of food, or repletion. They are in general robust and healthy, and thus fortified they inhale without detriment the deleterious gases of oxygen with carbon, carburetted hydrogen and the like, exhaled by the plants which grow out of the swampy soils. Thus protected, too, they are proof against the fluctuations of the seasons, and against every injury which threatens them; and their strong and sound condition enables them to sustain the fatigues of their long and arduous journeys, and to supply the rich countries of the West with their flesh, fleece, and hides.

      When the seasons have thus conveyed a due proportion of heat, water, and electricity to the elements of the soil, both plants and animals conduce to the comfort and health of man, and fulfil his expectations. But the laws of nature are involved in mystery. Good and evil go hand in hand – death and life travel close together – and a few years of prosperous harvests are almost invariably followed by blight, barrenness, and scarcity. Most men think only of the present time, and this imprudence and want of foresight prevent farmers and great cattle proprietors from collecting and holding in reserve the requisite stores of sustenance to supply their sheep and oxen during these barren seasons. Sickness then breaks out, and these helpless creatures perish in vast numbers, to the detriment of their owners' best interests.

      And truly, when continual rains cause the rivers to overflow, when the plains are drenched and soaked, or when a burning sun scorches the ground, herbivorous animals wander in vain from field to field in quest of sustenance to restore their strength, or of pure and healthy water to slake their thirst; their vital resistance dwindles away, deleterious gases poison and bewilder them, their blood is debased, and as Ovid says,

"Corpora fœda jacent, vitiantur odoribus herbæ."

      And since these mild and harmless animals, which seem to have been created merely to clothe us, and to nourish us with their milk and flesh, have not been endowed by nature either with the intelligence, or the activity, or the cunning, or the invention, or the skill bestowed on the omnivorous and carnivorous species, hard is their fate under the pressing needs of hunger. Peaceful creatures, they browse in vain on deleterious plants on a sterile soil; their external and internal teguments now afford a favourable seat for the propagation of parasites – for the parasitogenia; and soon after a general adynamia, or relaxation of the fibres, delivers them up without resistance to the morbific elements of the infectious diseases to which they are exposed, where the languishing, the sick, and the rotting are herded together, and they are carried off by hecatombs by this wasteful and devouring typhus.

II

      We may readily conclude, from these general observations on infectious and contagious diseases, that they must have existed in all former ages; and if in our present advanced state of civilization they are so destructive, we may be sure that in those remote periods they must have been, both as regards man as well as the brute creation, the cause of general extermination, in whatever parts of the earth they prevailed. And indeed, whenever we refer to ancient or modern history, we are continually struck with the analogy which exists between the epidemic diseases signalized by the general name of Plague, and which decimated all the living beings, and those which more recently, and at the present moment, have startled the world by their fatal effects on men and animals.

      Moreover, we cannot too often repeat the fact – in order that those documents relating to the past which contain useful instruction may be examined and searched into – that the physiological and pathological laws which rule and determine the phenomena of organic matter, whether in health or sickness, were, like the laws of chemistry, electricity, and astronomy, originally established at the time of creation, and that matter submits with passive obedience to the laws of transformation and transubstantiation, which are the absolute condition of life. These are the eternal laws of which a synthesis so admirable is furnished by the Gospel, in this short injunction, "Take, eat, this is my body; drink, this is my blood."

      Now, if man, who is the sovereign master of this matter, did not take care to regulate and modify it for his own benefit and the benefit of all living creatures on whom his own life depends, as well as his wealth and happiness; if he did not seek thereby continually to diminish the sum of evil, and to extend the sum of good which it is his mission to increase, he would violate these laws, which are inherent in matter, and which have existed for his use since the creation of the world.

      We must likewise believe that those Plagues which are spoken of in the Bible, those which Homer alludes to, that which is related by Plutarch, and which succeeded the general drought in 753 before Christ; those mentioned by Titus Livius, Virgil, Ovid, and other Latin authors, the most virulent of which plagues raged in the years 310, 212, and 178 of the Foundation of Rome, resembled the epidemics or plagues which are witnessed in our own day.

      The plague of 212 swept away all the inhabitants of Sicily, cattle as well as men; that of 178 destroyed all the priests, who sought in vain for victims free from the contagion, to offer them up as sacrifices to the offended Gods.

      Cecilius Severus gives a most striking description of a pestilential disease which, in 376 A.D., swept away all the cattle in Europe. Judging from his account of that scourge, we may fairly believe that the distemper he has described was identically the same as the one which has just broken out in England. "A universal distaste, sudden dejection, vertigoes, spasmodic tension in the limbs, a painful swelling of the lower belly, violent affections of the nerves, sudden death – everything shows the presence of a pestilential ferment, which irritates the solids, infects and vitiates the fluids, which is the cause of the putrefaction of the humours, manifested by the swelling of the lower belly, which in that case depends on a putrid fermentation so as to disengage air."

      A piece of iron, representing the sign of the Cross, was heated in the fire, and when red-hot was applied to the forehead of the sick animals; and this remedy was looked upon at that time as the most effectual they could apply.

      Grégoire de Tours makes mention of an epidemic, the result of a long dry summer, which, in 592, was very fatal in its havoc, sparing no living creature whatever.

      André Duchesne, in his "History of England," speaks of an epidemic which, in 1316, during the reign of Edward II., owed its origin, on the contrary, to a long season of rains.

      The celebrated physicians Ramazzini and Lancisi relate that in 1711, an ox which had been imported from Hungary, that constant focus of typhus, displayed the most deadly form of the cattle disease, in the Venetian territory, although no alteration in the air or waters had been observed in Italy, and the seasons had been regular and the pastures abundant. The contagion spread into Piedmont, where it carried of 70,000 head of cattle; thence it extended to France and Holland, each of which countries lost 200,000 of these animals. The trade in hides introduced

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