986 EXPERIMENT STATION RECORD. 



infection may remain for a considerable time in a house; there is no evidence 

 at present to supiiort tlu' view tliat the infection is inherited ]).v the bujj." 



Tenotomy of the perforatus in recidiving or incurable sprains of tendons, 

 A. gri-HHiAL' I ^''"■. I/''/- 1 '■/•. '"^'> W.ios), .Vo.s. //. 1)/,. ,{'i'.)-.{.',7 : i.i. i,i>. 'iLi-iiO; 

 (lbs. in Amcr. \'<t. Rcr., S'l (WUS), \(>. 2, pp. I')l-153). — As a result of experi- 

 ments continuing for in years, the author, an army veterinarian, concludes that 

 the advantages that the ten<ttomy of the i)erforatus presents are such tuat it is 

 the most radical and economical treatment to resort to in cases of recidiving or 

 incural)Ie sprains of the tendons, of the radial reinforcing band, and of the sus- 

 jiensory ligament and even in the relief of some incurable lameness due to 

 traumatic synovitis of the great sesamoid sheath. 



Plants poisonous to stock. The wallflower poison bush, J. C\ Brunnicii 

 {Qiicciishiml .!<//•. .lour., 21 {IHOS), .Vo. 2. pp. H9-'.>l). — Experiments made with 

 alkaloidal extract of (Idstrolobiiim f/rainliflfiniDi which demonstrate the jioison- 

 ous nature of the plant are repctrted. 



Disinfection and commercial disinfectants, M. 1'. Kavdinel and K. W. 

 Smith ( Wi.sciynsm Sta. Bui. 166. pp. 3-l'J, fign. 9). — In this bulletin the author 

 discusses various disinfectants and gives directions for their use. A number of 

 commercial disinfectants were tested, organisms being exposed to different 

 strengths at room temperature. They were then removed to fresh culture 

 media and incubated at 37° C. the observations l)eing kept up 72 hours. 



"The results of these tests showed that a 2i per cent solution of cresol, 

 international dip. carboleuni, chloro-naphtholeum disinfectant, zenoleum, 

 germol, and daytholeum destroyed the germ causing pus and abscess {iitapliy- 

 lococcus pyogenes aureus), hog cholera, and the typhoid germ in 1 minute in 

 every Instance. A 10 jier cent solution failed to destroy anthrax spores even 

 after 3 hours exposure. 



" Car-sul destroyed the germ causing pus and abscess, and hog-cholera germs 

 in a 2i per cent solution in 1 minute in every instance. A 10 per cent solution 

 failed to destroy anthrax sjiores even after 3 hours exposure. A 1 per cent 

 solution failed to kill the typhoid germ after 2 minutes exposure, destroyed it 

 after G minutes exi)osure, but failed to kill anthrax spores. 



" Dr. Robert's disinfectall killed the germ causing pus and abscess, and 

 typhoid germs in a 2| per cent solution in 1 minute. It failed to kill the hog- 

 cholera germ in this strength in 1 minute, but killed it in 3 minutes. It failed 

 to destroy anthrax spores after 24 hoiu's exposure." 



Antiformin, a disinfectant which dissolves bacteria, Uhlkniiuth and 

 Xylandkr { Berlin. Klin. Wehn.sehr., J,.5 (lOOS). Xo. 29. pp. 1346-1SJ,9; abs. in 

 Bui. Inst. Pasteur, 6 ( I90S), Xo. 20, p. 9.i6). — Antiformin is a trade name given 

 to the alkaline liquid prepared by the addition of caustic soda to a solution of 

 sodium hypochlorite (eau de Javelle). It has been used for some time as a 

 disinfectant, esi)ecially In breweries for rapidly and thoroughly cleansing vats 

 and pipes. 



The authors have found that a solution of 2 to 5 per cent will destroy most 

 bacteria including Baeterium .^ui.^eptieus within 5 minutes. Spores of anthrax, 

 however, resist its action. The disinfectant properties have remained for sev- 

 eral months when kept in the laboratory. Even in dilute solutions antiformin 

 was found to dissolve most of the bacteria without leaving a residue. The 

 tubercle bacillus and other acld-iJroof bacteria show a remarkable resistance to 

 Its action even in concentrated solutions, and attemi)ts have been made to 

 utilize this fact in the isolation of a pure culture of the tubercle bacillus from 

 sputum. Toxins and endotoxins have been destroyed by comparatively weak 

 solutions. The authors recommend antiformin for disinfecting and deodorizing 



