122 
JAMES LAW. 
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scriptions, reclamations and matters of a financial nature will 
be referred ; the advertising department remaining, as in the 
past, under the care of Mr. W. P. Cleary. 
We hope by this new departure to better accomplish the 
purpose had in view when the publication of the Review was 
undertaken, and above all to remove further cause for the 
well-grounded complaints that had their origin in the errors 
and omissions consequent upon the attempt to transact the 
business of the Review in an office already overcrowded with 
other matters. 
ORIGINAL ARTICLES. 
KOCH’S METHOD WITH TUBERCULOSIS 
AND THE EARLIER USE OF CORRESPONDING PRODUCTS IN 
OTHER CONTAGIOUS DISEASES. 
By James Law, F.R.C.V.S., Cornell University, Ithaca, N. Y. 
(A Paper read before the New York State Veterinary Medical Society.) 
This paper has been generally accepted as crediting its au¬ 
thors with the discovery of this principle of immunity by 
chemical products of the life of the germ, a principle which I 
had set forth so extensively in its bearing on the same disease 
five years before- It is true that I did not experiment with 
sterilized laboratory cultures, but assumed as self-evident that 
the diseased germs grown in a suitable medium and with a 
limited supply of air, would elaborate the same poisonous 
products. 
1 
EXPERIMENTS ON PIGS BY DRS. SALMON AND SMITH. 
In the report on hog cholera issued by the Bureau of Ani¬ 
mal Industry in 1889, Drs. Salmon and Smith record the result 
of injection with sterlized virus on twenty-two pigs, which at 
first sight is anything but reassuring as to the value of such 
products in protecting those animals against the disease. Of 
