THE MILK SITUATION IN THE DISTRICT OF COLUMBIA. 159 



The tester should give two full days' time, but temperature measurements 

 should be taken for two days prior to this to prevent testing an animal whose 

 temperatures are showing marked variation. (Walker- Gordon Laboratory, 

 Washington, D. C.) 



One or two days. Should be repeated after three or six months. (Dr. S. C. 

 Prescott, Boston, Mass.) 



From 18 to 24 hours. (Health officer Los Angeles, Cal.) 



Two days. One day previous in taking temperatures before injection, and 

 one day noting results. (Health officer San Francisco, Cal.) 



Approximately two days. (Health officer, Wheeling, W. Va.) 



Twenty-four hours. (Dr. C. J. Marshall, University of Pennsylvania, Phila- 

 delphia, Pa.) 



About 24 hours. (Health officer Scran ton, Pa.) 



QUESTION 7. Granting that the test should be applied only by governmental 

 authorities or qualified agents duly authorized thereby, would it be practicable 

 and advisable to restrict the use of tuberculin and its application to such 

 authorized officials or agents? 



ANSWERS. 



Yes. (Chief Bureau of Animal Industry.) 



Restriction is not necessary, but only the certificate of authorized officials 

 or agents should be recognized. (Surgeon General TJ. S. Army.) 



Yes. (Surgeon General U. S. Navy.) 



The tuberculin test should be administered by governmental authorities, or 

 certainly under their supervision. ( Surgeon General Public Health and Marine- 

 Hospital Service.) 



I believe not, because of the difficulty and expense when in out-of-the-way 

 places. I believe reacting cattle should be reported in confidential way to au- 

 thorities. (Dr. William H. Park, New York, N. Y.) 



Yes; if the work was done in conjunction with the State authorities. (Dr. 

 Henry L. Coit, Newark, N. J.) 



Yes. (Dr. R. G. Freeman, New York, N. Y.) 



Yes. (Dr. M. P. Ravenel, Madison, Wis.) 



Animals often show irregular temperatures during test that have been filled 

 up with tuberculin previous to such testing. Repeatedly injecting tuberculin 

 in animals to be presented for an authentic test is one of the many methods 

 that is used to defeat the object of the test. I would certainly restrict the use 

 of tuberculin. (Dr. T. A. Geddes, Kensington, Md.) 



No. (Health officer Ann Arbor, Mich.) 



Yes. (Health officer Baltimore, Md.) 



I think not. (Health officer Birmingham, Ala.) 



Yes. (Health officer Bismarck, N. Dak.) 



Very desirable, but not practical in some States owing to their laws. (Health 

 officer Cleveland, Ohio.) 



Yes. (Health officer Columbus, Ohio.) 



No. Health officer Detroit, Mich.) 



Not necessary, I think. (Health officer Jacksonville, Fla.) 



Yes. (Health officer Kansas City, Mo.) 



Yes. (Health officer Lynchburg, Va.) 



It would be most advisable if this could be done, as it would stop a lot of 

 crooked work. (Health officer, Montclair, N. J.) 



No. The test being very simple, owners often test their cows for their own 

 individual protection. (Health officer Portland, Oreg.) 



The test should be applied by Government agents or licensed veterinarians. 

 (Health officer Providence, R. I.) 



This would have to be done. (Health officer Richmond, Va.) 



Yes. (Health officer Rochester, N. Y.) 



Decidedly and most emphaticallly yes. A tuberculin test is valueless, in my 

 judgment, unless you know that the stock has never been tested; and in any 

 event know exactly what occurred. (Health officer Seattle, Wash.) 



Yes. (Health officer Syracuse, N. Y.) 



Yes. (Health officer Topeka, Kans.) 



Yes. (Straus Laboratory, Washington, D. C.) 



