74 EXPEEIMENT STATION" EECOED. [Vol.35 



animals. The dialysis reaction, used in connection with clinical data, greatly 

 facilitates the diagnosis of pregnancy. 



For the determination of tuberculosis in cattle the dialysis procedure is a 

 valuable diagnostic means, the number of failures being no larger than are 

 yielded by the tuberculin reaction. Its practicability, however, should be fur- 

 ther investigated. 



The fixation of salvarsan and neosalvarsan by the blood after intravenous 

 injection, W. J. Young {Biochem. Jour., 9 {1915), No. 4, pp. 479-48^). — It has 

 been shown that "after intravenous injection of goats with salvarsan and 

 neosalvarsan the serum contains arsenic in a form which can not be separated 

 from the proteins by dialysis, and which is precipitated with the serum pro- 

 teins by tannic acid. Salvarsan and neosalvarsan behave, therefore, in a simi- 

 lar manner to atosyl. No such combination is obtained when inorganic arsenic 

 is injected. This combined arsenic is found in the blood long after all free 

 salvarsan and neosalvarsan have been eliminated. This combined arsenic is 

 found in the plasma and in the red blood cells, but no trace of arsenic is retained 

 in the fibrin." 



Further investigations on the identification of anthrax by the precipita- 

 tion method, Schvtz and Pfeiler (Arch. Wiss. u. PraJct. TierhcUk., 41 {1915), 

 Xo. 4-5, pp. 286-321). — Experiments extending over a period of several years 

 have demonstrated that anthrax can be easily diagnosed by the precipitation 

 method. For the recognition of anthrax in cattle, horses, sheep, and swine, it 

 is deemed the most reliable of all the methods in use. 



The experimental results are submitted in tabular form. 



Experiments in vaccination against anthrax, A. Eichhobn (Jour. Amer. 

 Leather Chem. Assoc., 11 {1916), No. .',, pp. iS6-20-'/).— Previously noted from 

 another source (E. S. R., 34, p. 579). 



Proceedings of a conference to consider means for combating foot-and- 

 mouth disease, held at Chicago, 111., November 29 and 30, 1915 {U. S. Dept. 

 Agr., Proc. Conf. Comhatiny Foot-and-Mouth Disease, 1916, pp. 157). — A report 

 of the proceedings of a conference which was called and presided over by the 

 Assistant Secretary of Agriculture, C. Vrooman, who, in the opening state- 

 ment, briefly reviewed the general situation. 



The addresses delivered are as follows: The Application of Quarantine to 

 Public Stock Yards and What Restrictive Measures Should Be Employed to 

 Prevent the Infection of Such Yards Which So Far as Possible Shall Not 

 Burden Traffic, by J. S. :\IcFadyen (pp. 9-18) ; What Should Be Done to 

 Improve the Control of Cleaning, Disinfection, and Movements of Stock Cars 

 Used for Animals Originating in Quarantined Areas? by T. W. Tomlinson 

 (pp. 18-28) ; An Ideal State Law for Cooperation Between State and Federal 

 Authorities in Work of Eradicating Contagious Animal Diseases by C J 

 Mar.shall (pp. 29-38); What General and What Specific Rules Should Be 

 Observed in Fixing the Periods and Duration of the Different Forms of Quar- 

 antine Against Foot-and-Mouth Disease? by V. A. Moore (pp. 39-46)- The 

 Need for Legislation Providing for Full Compensation, Effective Ouara'ntine 

 and Saving Pedigreed Stock, by M. D. Munn (pp. 4G-55) ; Economic Effect on 

 Business Men as Well as Farmers of Temporary Out1)reaks and of Permonent 

 Presence of Live Stock Disease, by A. J. Glover (pp. 5.5-61) ; Remarks bv Dr. 

 J. G. Rutherford (pp. 62-67) ; discussions on losses from quarantine restrictions 



TllL^!"7^' ^Qr^'of ""T'" '^ "'^ ^"*'''''"'' ^^^- ^^SO), payment for losses in 

 II nols pp. 80-82). and spread of foot-and-mouth disease by contaminated 

 ant hog-c-lH. era serum (pp. 82^87) ; The Economic Importance to Stock Yards 

 of the Eradication of Foot-and-Mouth Disease, by A. F. Strvker (pp 87-89) • 

 Quarantine Zones or Units, by J. I. Gibson (pp. 89-106) ; The Cause of Footl 



