At the conference of stock Inspectors yesterday a lecture was delivered by Mr. J. F. McEachran, M.R.C.V.S., on "The Question of Observation." He dealt with the various diseases of stock, among them actinomycosis, actinobacillosis, tuberculosis, and cancer. Regarding the last-named, he cautioned his hearers not to rely too strongly on the wholesale use of the tuberculin test. In a mob of cattle it might happen that only a certain number reacted to the test at a given time but it would not be safe to give a clean bill of health to the rest of the herd, for the reason that these had been in contact with the diseased beasts, and might react later. He Instanced occasions on which the later test had shown further responses. Speaking of cancer, he said that from his observation he had found that it was often associated with tuberculosis. Instances had come under his notice where cattle addicted to bone chewing had had pieces of bone lodged in their mouths, causing suppuration and swellings. It was possible that this might be mistaken for actinomycosis, and the beast condemned in consequence. The remedy for bone-chewing was to administer phosphate of lime or bone meal to the cattle. Speaking of ophthalmia in stock, Mr. McEachran mentioned an instance where he inspected a herd in the Maitland district, and found that the owner had fly veils on his cattle. These were free from bad eyes, and the owner attributed the freedom to the veils, while other cattlw were badly infected.
An interesting discussion was opened by Mr. J. N. McCulloch, of Bombala, on black disease. He mentioned that in his experience animals, where they had access to swampy ground or "black" sprlngs, contracted the disease, and where the owner had fenced off the swampy part or the spring it disappeared.
Mr. C. O. Furness (Yass) said that in his opinion this disease should be made a notifiable one. He had advised owners of stock affected to drain the swamps.
In the debate several members said some experiments had been carried out by Dr. Dodd, and at the close a motion was carried asking that stock Inspectors be furnished with information concerning the results of Dr. Dodd's experiment.
Mr. R. Stewart, B.V.Sc., lectured on "Veterinary Topics," giving hints on the treatment of various diseases.
A motion was carried to the effect that the department should be asked to supply jars or other receptacles for forwarding specimens to the department for disease diagnosis or for examination.