REMARKS. 



Dr. Lewis Sayre Mace, San Francisco : I believe the skin tests 

 are largely in disfavor now, on account of their inaccuracy. The 

 reaction may be present in a case of tuberculosis where a very 

 small and absolutely insignificant lesion is present. It has been 

 shown that these reactions depend upon certain conditions which 

 follow no rule. Personally I would not place any dependence 

 upon the Moro or the von Pirquet reaction or the ocular reaction, 

 and I will say that I have seen negative results in early cases in 

 which removed tissue gave a positive result in guinea-pig tests. 



Dr. Stanley P. Black, Pasadena The question of testing of cattle 

 I think is a very important one. I am very glad that it was brought 

 out to-day. For several years we have been retesting cattle with 

 doubtful reactions in Pasadena. While I have not felt quite clear in 

 my conscience in regard to it I have re-admitted two herds of cattle 

 which have stood the second tests. Now I think that was wrong. 

 We must adopt the sign of the Roman Coliseum for the slaughter, 

 "Kill." However, it is not right that the dairymen should lose 

 every penny of the money. Some of them are dishonest enough to 

 sell cows to somebody else, cows that should be slaughtered; this 

 I know has been and is being done all the time. When we have 

 reacting cows in Pasadena we now brand them with a large tbc. 

 on the jaw, so that she cannot be sold to some unsuspecting person 

 as a good cow. This is a great help in recognizing them when they 

 are to be separated from the herd where before the only way we 

 had of finding them was by reading the number of the ear tag, and 

 until we adopted this method of branding we had a hard time in 

 finding the infected cows. The only way of solving this question, 

 of preventing the sale of infected meat, is for the State to pay an 

 indemnity for tubercular cattle. The public ought to pay the bill 

 as it is the only way out of it. 



Previous to the reading of the foregoing papers several tuber- 

 culous cows were examined and the various phases of the tuberculin 

 test exemplified by Dr. C. M. Haring and Dr. Walter Bates. 



A reacting cow was selected and after physical examination iu 

 the amphitheater, removed and slaughtered. 



At the close of the program the tubercular lesions of the animal 

 were demonstrated by Chester Roadhouse, D. V. M., Ex-U. S. 

 Meat Inspector and Veterinarian of the San Francisco County 

 Medical Milk Commission. 



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