VETERINARY SCIENCE AND PRACTICE. 993 



Beferring to the subject of inheritance of tuberculosis, it is shown 

 that so far as anatomical evidence is concerned, of 1,000,000 calves 

 butchered in Munich only 5 were evidently born with tuberculosis. Of 

 170,000 calves killed at Berlin during the years 1885 to 1887 only 13 

 were tuberculous, while of 230,000 killed in Ogsburg between 1873 and 

 188G, inclusive, only 9 were found diseased; while of 370,000 killed in 

 Prussia during 1888 and 1889 only 73 were found to be tuberculous. 

 This amounts to 1 case of inherited tuberculosis in 196,660 calves. 

 Bang's tuberculin experiments, the results of which indicate a much 

 larger percentage of inherited tuberculosis than is here reported, are 

 also noted. 



The positive inability to definitely determine whether an animal is 

 tuberculous, without dividing the whole animal up into sections of 

 microscopic thinness and making a microscopic study of the same, is 

 pointed out. 



Hog cholera and swine plague, W. B. Niles (Iowa Sta. Bid. 35, 

 pp. 769-780). — A popular article on these diseases, with suggestions 

 for their prevention, etc. Attention is called to the difficulty of diag- 

 nosing. The author is of opinion that when a large number of swine 

 die in a neighborhood they are attacked by either the one or the other 

 of the 2 diseases. 



The contagious character of the diseases, means of spreading, etc., 

 are discussed, and the popular notion that they arc due to feeding new 

 corn is controverted. Keeping an animal in vigorous health by the 

 observance of hygienic rules will render it to a certain extent less lia- 

 ble to any disease, but it will not render it immune against these swine 

 epizootics. Bad sanitation the author considers to be of greater assist- 

 ance in spreading the disease than all other causes. As to the reme- 

 dies, the author asserts that the reputation gained by cholera compounds 

 has been gained when the animal would have recovered without any 

 treatment. "A purgative at the outset of the disease, followed by 

 some antiseptic like carbolic acid or hyposulphite of soda, will give as 

 good results as anything." 



Preventive measures are more important. Objection is raised to the 

 inoculation method of Billings etal., that the disease is apt to be spread 

 as well as cured. The serum method it is thought will be of much serv- 

 ice if it proves practicable, but the method of mixing the serum with 

 the virus, as has been done in some recent experiments, seems to be 

 open to the same objection as the older methods of inoculation. 



The author is of the opinion that much more could be done by the 

 swine owners themselves. The most essential measure is the exclusion 

 of all sources of contagion. To accomplish this all swine bought for 

 feeding or breeding purposes should be quarantined for at least 30 days 

 before being placed with the herd, and the water supply carefully 

 looked after, that from deep wells being preferable. 



