986 EXPERIMENT STATION RECORD. 



this regard is very slight. Attention is called to the fact that bovine tubercle 

 bacilli are in all probability more virulent for man than are human bacilli. 



Dissemination of tuberculosis by the manure of infected cattle, M. H. 

 Reynolds and W. L. Beebe {Minnesota Sta. Bui. 103, pp. 39-02, pi. 1, figs. 7). — 

 The experiments reported in this I)u]letin were undertaken for the purpose of 

 determining the mode of exit of tubercle bacilli from tuberculous cattle and 

 whether any clinical symptoms can be noted in cases in which the feces contain 

 tubercle bacilli. The results obtained were of a somewhat negative character. 

 The feces of 45 tuberculous cows wei*e carefully examined for the presence of 

 tubercle bacilli and inoculations were made to determine the virulence of these 

 bacilli. In only one case was any evidence obtained of tubercle bacilli in the 

 feces. Among these 45 animals, 16 were thus tested three times, 1 five times, 

 and 2 four times. 



Similai-ly the nasal secretion was tested for virulence in 14 of the cattle and 

 only one showed the presence of a virulent nasal secretion. This cow was the 

 same one which was passing tubercle bacilli with the feces. It is suggested that 

 further studies along this line are required in order to determine the relative 

 frequency with which tubercle bacilli appear in the feces of tuberculous cattle. 



Tuberculosis of domestic stock and its control, H. L. Russell ( Wisconsin 

 tSta. Special BuL, pp. 6, figs. 2). — The author presents a discussion of the 

 economic importance of tuberculosis, the symptoms, etiology, and mode of in- 

 fection of the disease and the means of recognizing it. Particular attention is 

 called to the necessity of the genei-al use of the tuberculin test and the steriliza- 

 tion of all creamy by-pi'oducts. At present the State law prohibits the im- 

 portation of dairy and breeding cattle until they have been tested with 

 tuberculin. It is recommended that the same law should apply to the trans- 

 ference of cattle from one owner to another within the State. 



An experimental study of ophthalmo-reaction to tuberculin, A. Calmette, 

 M. Bretox, and G. Petit (Compf. Rend. Hoc. Biol. [Paris], 63 (1007), ^o. 

 28, pp. 296-208). — When healthy rabbits were inoculated intravenously with 

 tuberculin it was found that after a period of It! hours they would react in 

 a typical manner to tuberculin placed in the eye. Similarly when rabbits 

 were fed tuberculin the material seemed to be so distributed by means of 

 the alimentary tract as to render the animals sensitive to the ophthahno 

 reaction. This false reaction appears to indicate that even in healthy ani- 

 mals if tuberculin is brought in contact with the tissue it remains sensitive 

 to tuberculin for a number of days. 



Cuti-reaction to tuberculin, J. Lemaire (Compt. Rend. Soc. Biol. [Paris], 

 63 (1007), Xo. 28, pp. 299, 300).— If after obtaining a positive reaction in the 

 skin or eye a subcutaneous injection of tuberculin is given, it is followed by a 

 reappearance of the tuberculin reaction in the skin or eye. If a second cutane- 

 ous or ocular test of tuberculin be made, the reaction appears much more 

 promptly than upon the first test. 



Actinomycosis and botryomycosis, G. H. Wooldridge (Jour. Compar. Path, 

 and Ther., 20 (1907), Xo. 3, pp. 189-202). — The symptoms, etiology, and path- 

 ological lesions of this disease are described with particular reference to the 

 relationship between human and bovine actinomycosis and the attitude of the 

 meat inspectors toward the disease. The cultural characteristics of the 

 organism of botryomycosis are briefly outlined. This disease may best be 

 treated by surgical removal of the lesions. Internal use of iodid of potash has 

 given very poor results in the author's exiierience. 



Blackleg and vaccination for it, N. S. Mayo and W. W. Dimock (Estac. 

 Cent. Agron, Cuba Circ, 27, pp. 15, figs. 2). — The occurrence and pathology of 



