NOTES. 99 



may imuiiico rf'si)iratory i)ai-alysis. It apjioars to have no veniiifni,'0 effect, 

 but is rocoiunieiuled for laminitis ami azoturia. One of the most marki'd 

 <"ffc('ts of tlie drug is to hiwer liie i)hi(id ])ressnre. 



\'. A. Moore and ^^^ .1. Tayloi- discussed the agghiti nation mctimd in the 

 dia.unosis of glanders. The method is considered vei-y usi'fui in doulitful cases. 

 The process takes place even witii dead glanders liacilli, and mallein does not 

 interfere with tlie reaction. In general, a reaction is obtained in dilutions of 

 1 : l.()(H)-2,<nio. Willie in the case of nonglanderous serum a reaction will not take 

 ])Iace in a dihition greater than 1 : ."itHi. 



(J. II. r.erns reported that in a test of the agglutination methdd in l.VJ cases 

 tlie results were contirmed in .all except one case. 



The control of glanders in the Dominion of Canada was discussed liy .T. (}. 

 Iiutherford. When the Dominion government first took np the control of tuber- 

 culosis rea.cting hoi'.ses were lield in quarantine and subsequently tested with 

 mallein in the hope that some of them might cease to react or I)econ]e cured. 

 This method has lieen abandoned, however, in favor of the one of slaughtering 

 all glanderous horses whether showing visible symptoms of glanders or not. 

 The reason for the chiinge of policy lies in the fact that reacting but nonclinical 

 oases of glanders were found to he fruitful sources of spreading contagion. 



\Y. II. Dalrymple, in a paper on insect enemies, referred to the importance 

 of niosijuitoes, ticks, tsetse fly, and Iiorsetlies in transnntting animal and human 

 «liseases. A number of other biting insects may be concerned in the transmis- 

 sion of diseases and at least contribute to a considerable loss of condition in 

 animals. 



A. Loir referred to his recent experience in South Africa and elsewhere in 

 diagnosing rabies by means of Negri's corpuscles. The author's experince 

 indicates that wherever Negri's corpuscles are found a reliable diagnosis of 

 rabies may be reached. I)ut that the absence of corpuscles does not necessarily 

 <'.\clude the possibility of rabies being present. 



A. T. Peters described a spraying method for the control of cattle mange. In 

 Nebraska and elsewhere cattle mange was first treated by hand, after which 

 <lil)ping was inaugurated on a large scale in 1900. A spraying machine has now 

 been devised which, in the author's opinion, is more effective than any dipping 

 system. The cattle are driven through a chute where they receive the spray 

 from all sides simultaneously. The machine can be set up anywhere on the 

 range, and the cattle therefore do not have to be driven long distances to be 

 treated. It will spray from 800 to 1,000 cattle per hour, and any dip can be 

 used, although a 2.''> jier cent mixture of crude oil and water is preferred. 



K. Kbbitt gave the results of his study on tuberculosis in swine, which 

 :il)l)ears most commonly in a glandular or scrofulous form. The author has 

 observed more tuberculosis in swine than in cattle, and believes this is not all 

 <Hie to the u.se of creamery by-products, but rath.er to feeding tankage. The 

 last idea, however, was combated by a number of other members in discussion. 



S. II. Ward, in a paper on Tuberculosis in Cattle, stated that mammary 

 tuberculosis is very rare and that inhal.-ition is not the main source of the dis- 

 ease. :Most cases appear to he <if intt-stiiial origin. The reti-opliiii'.vngeal 

 glands were found to be affected in (U) per cent of cases. 



C. II. .lewell gave an account of the veterinary service in the Army. At 

 liresent there are IW veterinarians in the cavalry service and 1L' in the artillery 

 service. Some improvements are needed in the service such as would he ob- 

 tained by giving the veterinarians a regular military footing and the retire- 

 jiient privilege. The service also needs more hospitals. 



