476 EXPERIMENT STATION EECOED. 



Practical and scientific horseshoeing', F. G. Churchill (Kansas City, Mo., 

 1912, pp. 127, pis. 7). — A small handbook. 



Subject and author index to Centralblatt fiir Bakteriologie, Parasiten- 

 kunde und Infektionskrankheiten, E. Riehm (CentU. Bakt. [etc.], 2. Abt., 

 General- Register fiir die Bdnde 21-30. Jena, 1911, pp. 393). — This is the author 

 and subject index of this publication for volumes 21 to 30, inclusive. 



The bacterial cell, A. Meyer (Die Zelle der Bakterien. Jena, 1912, pp. TI+ 

 285, pi. 1, figs. 3.'f). — This is a comparative and critical compilation of the 

 knowledge in regard to the bacterial cell, and is meant for botanists, zoologists, 

 and bacteriologists. 



On the transmission of immunity from mother to offspring. — A study upon 

 serum hemolysins in goats, F. W. Famulener (Jour. Infect. Diseases, 10 

 (1912), No. 3, pp. 332-368). — "To summarize briefly the principal results of 

 the experiments, it was found that goats actively immunized against sheep blood 

 corpuscles during gestation passively transmitted the specific hemolysin to their 

 young. Colostrum was the chief agent in bringing about the passive immuniza- 

 tion of the suckling. Sucklings which got the colostrum and first milk rapidly 

 acquired a relatively high antibody content in their blood, which was well 

 retained. When the immunization was done during the period of gestation the 

 colostrum contained a high content of specific hemolysin, often much higher 

 than the adult's serum at time of parturition. The hemolytic antibodies rapidly 

 disappeared from the milk after the mother had been suckled by the young. 

 The blood taken from the newly born before they were permitted the antibody 

 colostrum showed no appreciable amount of hemolysin by the test used. The 

 placenta played a minor role in the passage of hemolysins to young before birth, 

 practically negligible in most cases. Mother goats, actively immunized against 

 sheep-blood corpuscles immediately after birth of their young, failed to trans- 

 mit any demonstrable immunity to their suckling young. The milk, in some 

 cases, contained no demonstrable hemolysins, but in others showed fairly large 

 amounts. Apparently a very high degree of immunity is necessary before ap- 

 preciable amounts of antibodies are excreted through the milk. Older sucklings 

 apparently did not absorb the antibodies in an unchanged condition. The young 

 animals (kids) did not respond to any extent in production of hemolysins fol- 

 lowing subcutaneous injections of foreign blood cells (sheep)." 



The production and valuation of curative sera, K. E. Boehncke (Ztschr. 

 Angew. Chem., 25 (1912), No. 18, pp. 865-870). — A simple and concrete discus- 

 sion of the facts pertaining to the production and testing of curative sera. 



The optical method and its use in serum diagnosis, II. Miessner and K. B. 

 Immisch (ilitt. Kaiser Willielm-s Inst. Landic. Bromherg, 7/ (1912), No. 3, pp. 

 160-187, fig. 1). — This is a study of the optical behavior of normal and abnormal 

 sera from various animals. The changes produced in the rotation as observed 

 in the polariscope by silk-normal serum and glanders serum peptones and 

 glanders bacilli extracts in a mixture with the serum of diseased hor.ses were 

 very atypical and did not greatly differentiate themselves from the value ob- 

 tained for the sera from normal animals. Therefore the optical method is not 

 considered an etiicient method for diagnosing disease, especially where glanders 

 is concerned and peptone mixtures are employed. 



Dipping and tick destroying' agents, H. Watkins-Pitchford {Agr. Jour. 

 Union So. Africa, 2 (1911), No. 1, pp. 33-79, pis. 2, figs. ^).— This is a report 

 of dipping experiments, etc., with the brown tick (Rhipicephalus appeudicu- 

 latiis), which transmits the virus of East Coast fever, conducted in continuation 

 of those previously noted (E. S. R., 24, p. 393). The investigations reported 

 include the following subjects: Shortest periods for engorgement of the larva 



