518 EXPERIMENT STATION RECORD. 



The number of red ami white blood corpuscles was 400,000 and 30,000 per cubic 

 millimeter, respectively. The number of leucocytes in proportion to that of the red 

 blood corpuscles was therefore far greater than normal, and this proportion was chiefly 

 due to the multiplication of large uninuclear leucocytes. The chromocytes were for 

 the most part nuich smaller than under normal conditions. A critical examination 

 in this case led tlic author to believe that it was of congenital origin. 



The work against sheep scab in 1902, E. B. Jones ( U. S. Dejd. Ayr., Bureau 

 of Animal Industrij Rpt. 1902, pp. 3S-44)- — The effectiveness of dipping experiments 

 in 1902 was greater than that obtained during the previous year. In 1902, 15,327,766 

 sheep were inspected, 1,840,308 dipped once, and 275,921 given a second dipping. 



The number of scabby sheep received at stock yards where regular inspection sta- 

 tions are located was considerably decreased. The effectiveness of dipping was 92 

 per cent, as compared with 91.8 per cent of the previous year. Many more sheep 

 were dipped by the owners the second time than during the previous year. Of the 

 total number inspected, 1,366,007 were reported as infected. This number amounts 

 to 8.9 per cent of the whole number. Detailed statistics are presented in a tabular 

 form showing the number of sheep received at various stations and the results of 

 dipping. 



A comparison of the 3 dips used in 1902 showed the effectiveness of tobacco extract 

 and sulphur to be 100 per cent, of lime and sulphur 89 per cent, and of nicotin and 

 sulphur 21.3 per cent. At Kansas City nicotin and sulphur showed an effectiveness 

 of 100 per cent, and lime and sulphur 99 per cent. The great effectiveness of these 

 remedies from a single application is sufliciently indicated by these data. The 

 author believes, however, that too n:iuch confidence should not be placed in a single 

 dipping; a few scab mites may escape, and sheep are also subjected to subsequent 

 infection. 



Serum, therapy for sheep pox, H. ]\Iartel {Bev. Ghi. Med. Yet., 1 [1903), No. 

 11, ])p. 609-617). — The literature of this subject is briefly reviewed and statistics are 

 given showing the success which has been had from vaccination for sheep pox. The 

 results -obtained are encouraging. It has been found that 10 cc. of the serum for 

 adults and 5 cc. for young lambs is sufficient to produce quite substantial immunity, 

 while encouraging curative properties were manifested when the serum was used in 

 doses of 40 cc. 



Epizootic abortion in mares, J. Guillerey {Arch. Wiss. u. BraJd. ThierJt., 29 

 {1903), No. 1-2, pp. 37-68, figs. 4)- — The literature of this subject is critically dis- 

 cussed in connection with a brief bibliography. Detailed notes are given on a num- 

 ber of cases observed by the author and statistics are presented showing the period 

 of incubation, age of the mother, age of the fetus, and complications which followed 

 the act of abortion. 



As a rule the period of incubation ranged from 10 to 18 days, and in certain cases 

 the disease assumed a very acute form. In some cases the sjjread of the disease waa 

 exceedingly rapid, and in others quite slow. The most usual complications follow- 

 ing abortion were retention of the afterl^irth, metritis, infectious arthritis, hemoglo- 

 binuria, laminitis, and inflammation of the udder. In the prophylaxis of this 

 disease the author recommends isolation of affected animals, thorough disinfection 

 of the premises where the disease has prevailed, and destruction of the fetus. In 

 treating the disease the author considers antiseptic applications in the uterus and 

 vagina to be indispensable, especially in cases complicated with metritis. 



Voges's description of mal de caderas, C. W. Stiles ( U. S. Dept. Agr., Bureau 

 of Animal Bidusfrg Bpt. 1902, jyp. 411-416)- — A brief summary of Voges's account of 

 this disease, as presented in an article already noted (E. S. R., 14, p. 400). 



Hyphomycosis destruens equi, J. de Haax and L. J. Hoogkamer {Arch. Wiss. 

 u. Brakt. Thierh., 29 [1903), No. 3-4, pp. 39-5-410, figs. 5). — A number of cases of this 

 •disease was observed by the authors. The chief symptoms are swelling and redness 



