84 EXPERIMENT STATION RECORD. 



study of the Voldagseu bacillus was made in comparison with B. coli, B. 

 typhosus, B. paralyphosus B, Gartner's bacillus, and B. suipestifer. 



The results show that B. voldagsen has several characteristics in common 

 with B. typhosus, but that it can be easily distinguished from the paratyphoid 

 B bacillus and B. suipestifer, B. voldagsen, for instance, like the typhoid 

 bacillus gives no changes on neutral red (Oldekop) agar, while all the remain- 

 ing organisms reduce It. It furthermore i)roduces no changes in Hetsch's solu- 

 tion, causes a permanent reddening of litmus milk and a medium turbidity in 

 bouillon, and behaves like B. typhosus in the Loffler-green solutions. Some 

 Voldagsen strains produced small amounts of indol while others did not. 



The infection test witli B. voldagsen showed that the bacteria caused a 

 disease resembling virus hog cholera and which heretofore has been considered 

 clinically and pathoanatomically as a form of that disease. It is pointed out 

 that further experiments are necessary to determine whether virulent pestifer 

 strains produce an easily transferable disease in shoats such as is caused by 

 B. voldagsen. The disease caused by the filterable virus can be easily distin- 

 guished, from the macroscopical-pathological findings in the intestinal tract, 

 from that incited by B. voldagsen. 



In reg'ard to the causes of meat poisoning. — Paratyphoid B bacilli, Vol- 

 dagsen type, as a cause of meat poisoning in man, G. Bernhardt iZt'schr. 

 Ilyg. u. Infektionskrank., 13 {1912), No. 1, pp. G^-tS; alts, in Berlin. Tierdrztl. 

 Wchnschr., 30 {191Jt), No. Jf, p. 65). — In the organs of a woman dying as a 

 result of meat poisoning Bacillus voldagsen and B. typhi siiis (Gliisser) were 

 found. Remarkable variations in regard to the cultural properties and agglu- 

 tination were noted. The author on this account recommends the use of poly- 

 valent paratyphoid sera for diagnosis and sug'gests that special attention be 

 paid in noting atypical meat poisoning bacteria. 



Arterial sclerostomatosis in the horse, S. H. Burnett (Rpt. N. Y. State 

 Vet. Col., 1911-12, pp. 70-78, pis. 2). — A report of histopathological studies read 

 at the Indianapolis meeting of the American Veterinary Medical Association 

 in August. 1912. 



Experiments with salvarsan in the treatment of canine distemper, C. 

 Krocheb (Ztschr. Hyg. u. Infektionskrank., 78 {1914), No. 2, pp. 321-362).— 

 The author finds that salvarsan does not prevent nor cure distemper in dogs. 



RURAL EN^GrNi:ERrN"G. 



Irrigation branch {Rev. Rpt. Bihar and Oiissa [India], Irrig. Branch, 1912- 

 13, pp. II-\-139, pis. Jf). — In addition to statistical and other data maps are 

 given showing irrigation canals and the areas irrigated. 



The water economy of the earth, W. Halbfass {Natiirw. Wehttschr., 29 

 {1914), No. 38, pp. 593-598). — The author reviews a number of theories and 

 opinions regarding the relative effects on the waters of the earth of precipita- 

 tion, run-off, evaporation, and condensation, which taken as a whole constitute 

 a cycle of more or less closely related events which are thought to influence 

 profoundly the distribution of terrestrial water between land and sea. He is of 

 the opinion thnt existing conditions point to the necessity of providing storage 

 dams, reservoirs, and other artificial means for preventing run-off in order 

 that the water economy of the earth may be placed on a more efficient basis. 



Tests on plain and reinforced concrete tiles, G. P. Diekmann {Con<?rete- 

 Ceinent Age, 4 {1914), ^^o. 5, pp. 250, 251). — Tile 28 in. in diameter with a wall 

 thickness one-tenth the diameter and consisting of a semiwet mixture of 1 part 

 cement and 3 parts sand were used in the tests. The reinforcing was the dou- 



