282 EXPERIMENT STATION RECORD. [Vol 38 



The advantages of testing pure-bred herds for tuberculosis are discussed. 

 Eradication worli with tuberculos-is was actively carried on, especially among 

 the pure-bred herds of cattle. Almost one-half of the tuberculous pure-bred 

 cattle which were slaughtered during the year were found to have been im- 

 ported with a certificate of health or as calves. With the view to protecting 

 buyers a regulation was adopted requiring all imported pure-bred cattle to enter 

 quarantine at destination, pending a retest within 60 days, unless the cattle 

 were from accredited tuberculosis-free herds. The plan of listing tuberculosis- 

 free herds has resulted in placing over SO pure-bred herds on the list. During 

 the year 61,727 cattle were tuberculin tested of which 1,335 reacted, almost all 

 of which have been appraised and slaughtered. 



Annual report for 1916 of the principal of The Royal Veterinary College, 

 J. McFadvean (Jour. Roy. Agr. Soc. England, 77 {1916), pp. 197-206, figs. 2).— 

 This report, which deals with the occurrence of infectious diseases of live stock, 

 includes tabular data showing the outbreaks for the years 1911 to 1916, inclu- 

 sive, of anthrax, glanders, sheep scab, and hog cholera. A brief summary is 

 given of investigations made of Johne's disease, more extended reports of 

 which have been noted from other sources (E. S. R., 36, p. 382; 37, p. 479). 



Live stock sanitary laws of Montana; also rules and regulations and orders 

 of the Montana Live Stock Sanitary Board (Helena, Mont.: State, 1917. pp. 

 136). — "The rules and regulations of the Montana Live Stock Sanitary Board 

 conform as closely as possible to the rules and regulations of the Bureau of 

 Animal Industry of the U. S. Department of Agriculture. ... All proclama- 

 tions and orders heretofore promulgated but not contained in this pamphlet 

 have been rescinded." 



Quarantine and general regulations of State of New Mexico (Albuquerque, 

 N. Mex.: Cattle Sanit. Bd., 1917, pp. 8). — This gives the regulations of New 

 Mexico governing admission, transportation, and inspection of cattle, horses, 

 mules, asses, hogs, and hides, effective July 1, 1917. 



Iron as an antidote to cottonseed meal injury, W. A. Withers and F. E. 

 Caeeuth (Jour. Biol. Cliem., 32- (1917), No. 2, pp. 245-257, figs. 4).— "Four 

 feeding experiments with pigs have shown that iron salts have a decidedly 

 beneficial action in preventing cottonseed meal injury. Much larger quantities 

 of meal are consumed, deaths have been postponed or averted, and better 

 gains have been made when an iron salt is added to the feed. 



" Wood ashes apparently have no antidotal action in averting death, but as 

 the lot receiving ashes made much better gains it is possible that this is due to 

 improvement of the inorganic part of the diet composed of corn and cottonseed 

 meal. 



" The suggestion is made that the iron salts combine with, or facilitate 

 oxidation of, the harmful substances in cottonseed meal. Iron salts have an 

 antidotal action toward cottonseed meal poisoning of rabbits and swine. 



" By thus controlling the toxic factor, it is shown that cottonseed meal 

 injury is not due to a lack of ' vitamins ' or to deficiencies in calcium, sodium, 

 and chlorin, which ash analyses might lead one to suspect as the limiting 

 mineral factors in a diet of cottonseed meal and corn." 



Investigations on the prevention of nuisances arising from flies and putre- 

 faction, F. W. FoBEMAN and G. S. Graham-Smith (Jour. Eyg. [Cambridge], 16 

 (1917), No. 2, pp. 109-226, pis. 5, figs. 7).— In the first part of this paper the 

 authors summarize the preliminary experiments and observations which led 

 them to consider that coal-tar creosote oil, alone or combined with other re- 

 agents, would prove of great value in the prevention of putrefaction in ex- 

 posed bodies, the deodorization of putrefying carcasses, the destruction of fly 

 maggots in animal refuse and manure, and the prevention of nuisances caused 



