Look for a moment at the amount of capital invested in live stock; and from these statistics the reader will perceive that not only the farmers, but the whole nation, will be enriched. There are in the United States at least 6,000,000 horses and mules; these, at the rate of $50 per head, amount to $300,000,000. It is also estimated that there are 20,000,000 of neat cattle; reckon these at $25 per head, and we get the snug little sum of $500,000,000. We have also 20,000,000 sheep, worth the same number of dollars. The number of swine have been computed at 24,000,000; and these, at $3 per head, give us $72,000,000. Hence the reader will see that the capital invested in this class of live stock reaches the enormous sum of $892,000,000. Add the 25 per cent. just alluded to, and we get a clear gain of $223,000,000. This sum would be sufficient to build veterinary schools and colleges capable of affording ample accommodations to every farmer's son in the Union. Hence we entreat the farming community to ponder on these subjects. They have only to say the word, and schools for the dissemination of veterinary information shall spring up in every section of the Union. Does the reader wish to know how the _farmers_ can accomplish this important object? We answer, there are four millions of men engaged in agricultural pursuits. Their number is three times greater than that of those engaged in navigation, the learned professions, commerce, and manufactures. Hence they have the numerical power to control the government of these United States, and of course can plead their own cause in the halls of congress, and vote their own supplies for educational purposes. When the author first commenced a warfare against the lancet and other destructive agents, his only hopes of success were based on the coöperation of this mighty host of husbandmen; he well knew that there were many prejudices to be overcome, and none greater than those existing among his brethren of the same profession. The farmers have just begun to see the absurdity of bleeding an animal to death, with a view of saving life; or pouring down their throats powerful and destructive agents, with a view of making one disease to cure another! If the cattle doctors, then, will not reform, they must be reformed through the giant influence of popular opinion. Already the cry is, and it emanates from some of the most influential agriculturists in the country,--"_No more blood-letting!_" "_Use your poisons on yourselves._" To the cattle-rearing interest, at the hands of many of whom the author has received aid and encouragement, the following pages are dedicated; they are intended to furnish them with practical information, with a view of preventing disease, increasing the value of their stock, and restoring them to health when sick.