676 EXPERIMENT STATION EECORD. 



• 



of the trachea varied in different eases. Giant eells were sometimes formed )).v 

 the fusion of epithelial eells. 



It appeared duriuf; these experiments that the differences between malij^nant 

 growths and benii^'n forms of irritation set up by oriL^anisms such as those used 

 by the author are not always sutliciently striking to enable one to make the 

 diagnosis. 



Experiments in examination of the locked jaw induced by tetanus toxin, 

 H. E. RoAF and C. S. Sherrington (Jutir. I'hijaiol., J'/ {1906), Xo. Jf-o. pi). 315-- 

 331, charts -)). — The experiments, the results of which are here reported, were 

 carried out on monkeys. 



It appeared that after the division of the lower jaw at its symphysis the 

 stimulation of the corresponding area of the brain cortex caused an opening of 

 the jaw. After inoculation of the facial nerve with tetanus toxin the stimulation 

 of the same area of the brain caused a closing of the jaw. This change was 

 more pronounced during the early stages of intoxication. The authors are of 

 the opini(jn. however, that the cerebral cortex was not affected by the tetanus 

 toxin, but the changes in the reactions obtained took place in some of the lower 

 brain centers. 



The treatment of tetanus by the method of Baccelli, G. Bianchedi (C//h. 

 Vet. \Miliiii]. .>'.! (]!Ki(i). So. 39, 1)1). 937-9.51). — The results obtained l)y the 

 author in experiments with this method agree largely with his own observations 

 in indicating for it great practical utility, but not an absolute infallibility. 



Danysz' reaction, T. Madsen and S. Arrhenius (Meddcl. K. VctcHHl;. Akad. 

 yohclinst.. 1 {1906). No. 3, pp. 1-20. figs. 3).— In a study of the reactions 

 between the toxin of tetanus and its antitoxin, it has been demonstrated that 

 after the tetanus toxin has been neutralized by the antitoxin a new reaction 

 takes place if the antitoxin is in excess. This second reaction consists in a 

 fixation of a relatively large amount of antitoxin and is known as Danysz' 

 reaction. The reaction depends upon the excess of antitoxin over the toxin. 



Infection in tuberculosis, A. E. Mettam {Vet. Rcc, 19 (1906), No. 951, pp. 

 182-1S6). — Brief notes are given on tuberculosis in birds, dogs, cats, pigs, 

 horses, and cattle. As a result of the investigations already made on methods 

 of controlling the disease the author believes that healthy animals may be 

 protected by the Bang method or by the vaccination method recently perfected 

 by Calmette, Guerin, and Vallee. 



Immunization to tuberculosis, P. Haan (Rev. Grii. Mrd. Vet.. 8 (1906), No. 

 91, pp. 3Ji9-356). — The author reviews in a critical manner the various schemes 

 which have been proposed for the immunization of cattle and other animals 

 toward tuberculosis. It is admitted that much promise is given by the results 

 thus far obtained but that at present we are still in need of a method which 

 will give certain results in combating the disease. 



Cornstalk disease, R. A. Craig (Indiana ^ta. Circ. 3. pp. 10). — A disease 

 which was referred to by this name appeared quite extensively in Indiana 

 during 1902 and lt)0(;. Reports were obtained from a number of observers, 

 some of them veterinarians, concerning the symptoms of the disease and cii'- 

 cumstances siu-rounding outbreaks. Moldy corn was obtained from a field 

 where cattle had developed the disease and was fed to a heifer at the rate of 

 4 to 5 lbs. twice per day. At the end of 6 days the heifer showed considerable 

 weakness and other pathological symptoms but the weakness disappeared the 

 following day and the appetite remained good during a period of IG days. 



The theories held by different observers regarding the cause • of cornstalk 

 disease are briefly sunnnarized. The conclusion is reached that there are 

 probably several diseases referred to under the same name. While the 

 symptoms resemble those of toxic poisoning it is by no means certain that 



