(2) The immediate quarantine and isolation of any herd in which the disease was found. If any considerable amount of the disease was found in any section of the country so as to be dangerous of spreading to other districts, the immediate quarantine of that district was enforced, as well as the prohibition of the movement of any animals from one herd or premises to any other within the district, or of any cattle to be upon any highway or any enclosed land within such district; provided, however, that animals might be moved, upon a written permit, signed by an inspector of the Bureau of Animal Industry. As soon as the quarantine order had been made, the immediate inspection, tagging, and numbering of every bovine animal in the district, and the keeping of a record of the same, and a record of all animals moved by permits was attended to so that the Bureau of Animal Industry might have complete control of the movements of all cattle within the quarantined districts. (3) The condemnation and slaughter of all animals found to be diseased or exposed to the disease within the quarantined districts, and the thorough disinfection of all premises where such animals had been, or on which contagious was suspected to exist. At the same time, inspection and post-mortem examinations were made of every animal slaughtered during the quarantine, whether purchased and slaughtered by order of the Bureau of Animal Industry or killed by butchers, or others for their own use. FOOTNOTES: [38] Report of Bureau of Animal Industry, 1886. VII. THE FEED INDUSTRY OF THE UNITED STATES