486 EXPEBIMENT STATION KECOED. 



make it pi-ofitable to pay for that amount of labor, it is entirely feasible to cut 

 out all of the loco weeds. This is particularly easy in regard to Astragalus 

 moUissimus, because it grows in comparatively small patches. Where Aragallus 

 himherti is abundant the work would be more difficult, and in some cases the 

 land is hardly worth the expense of the labor. It is evident that in the case 

 of fenced pastures it frequently will be profitable to destroy the loco weeds 

 in this way. 



" Some locoed animals will recover if taken from the weed and fed well, 

 without any treatment. 



" Most locoed animals will recover if they are taken from loco, fed carefully, 

 and treated on the lines indicated by our experiments. 



" In all cases care should be taken to relieve constipation, either through the 

 character of the food or by the use of magnesium sulphate. 



" Horses are best treated with Fowler's solution in daily doses of 15 cc, 

 continued for at least one mouth. 



" Cattle are best treated with daily doses of strychnin, the doses not exceed- 

 ing three-twentieths of a grain, given hypodermically, and continued for one 

 or two mouths. It is especially important that the dose should be small, as 

 locoes are very susceptible to the bad effects from overdosing." 



An extensive bibliography is appended. A companion bulletin dealing with 

 laboratory expei'iment.s has been previously noted (E. S. R., 20, p. 280). 



Lymphatic g'lands of the ox, J. F. Craig {Vet. Jour., 65 (1909), No. 408, pp. 

 279-280). — A contribution to the study of the lymphatic glands. 



Johne's disease in cattle, C. W. Townsend (Vet. Rec, 21 (1909), No. 1094, 

 pp. 870-872). — The author believes this disease to be more prevalent in the fen 

 districts than in other parts of England. 



Filtration experiments on the virus of cattle plague with. Chamberland 

 filters "F," E. H. Ruediger (Philippine Jour. 8ci., B. Med. Sci., 4 (1909), No. 

 1, pp. 37-42, charts 5). — "From the experiments previously reported [E. S. R., 

 20, p. 1188] and those recorded hei-e it is evident that even on carefully select- 

 ing the most porous of the Chamberland filters, marked " F," none have been 

 found which allowed the virus of cattle plague to pass." 



Filtration experiments with Bacillus cholerse suis, C. N. McBryde ( U. S. 

 Dept. Agr., Bur. Aiiini. Indus. Bui. 113, pp. 31, fig. 1). — Two series of filtration 

 experiments with bouillon cultures of B. cholerw suis carried out by the author 

 in order to determine whether filters of the Berkefeld and Pasteur-Chamberland 

 type can be relied upon absolutely to restrain the bacillus are here described 

 in detail. 



In view of the results obtained the author concludes : 



"(1) That Pasteur-Chamberlaud filters F and B effectually prevent the pas- 

 sage of B. cholera^ suis. 



"(2) That the smaller Berkefeld laboratory cylinders vary in permeability. 



"(3) That certain of the Berkefeld laboratory cylinders will prevent the pas- 

 sage of B. cholerm suis when a limited amount of material is filtered. 



"(4) That the granules noted in cultures of B. cholerw suis have no signifi- 

 cance in filtration experiments with this organism. 



"(5) That in the filtration experiments described in Bulletin 72 [E. S. R., 17, 

 p. 87], the filtrates employed did not contain B. cholerw suis. 



"(6) That hog cholera is due to a-n ultra-visible virus sufflceintly small to 

 pass through the pores of the Chamberland filter." 



Pyemic arthritis, ,J. Spencer (Virginia Sta. Rpt. 1908, pp. 125-130). — Details 

 are given of a number of cases, representing all degrees in severity of attack, 

 that were treated with antistreptococcic serum. 



