BUREAU OF ANIMAL INDUSTRY. 253 



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INDEX-CATALOGUE OF MEDICAL VETERINARY ZOOLOGY. 



The author index of this catalogue has l)ccn compkited, parts 27 to 

 34 iiaviiig b(!en issued (hiring tlie year, and part 35 havinj^ since 

 appeared. Part 36, containinj^ adchtions and corrections, has been 

 prepared and sent to i\\v, |)rinter. In reporting the completion of 

 this index it may be notcid that this is one of the most important and 

 vahial)le reference works on the subject of parasitology ever pubiislied 

 and has been greatly in demand not only in this country but also 

 abroad. 



PARASITES OF HOGS. 



Some work has been done on the kidney worm, stomach worms, and 

 ascarids of hogs. More extensive investigations of these important 

 parasites are contemplated for the ensuing year. 



MISCELLANEOUS. 



Numerous autopsies were performed on various animals, wil<l and 

 domesticated, and examinations made for the presence of parasites; 

 a large number of specimens sent in by the field force of the bureau 

 and by other correspondents were examined and identified; the usual 

 amount of correspondence relative to parasitic diseases was received 

 and replied to, and other routine matters have received attention. 



An important work on the nematodes parasitic in the alimentary 

 tract of cattle, sheep, and other ruminants, which has been in 

 preparation for several years, has been published as Bulletin 127. 



Several new species of parasites discovered in the course of inves- 

 tigations carried on in tnis division have been described and the 

 descriptions turned over to the United States National Museum for 

 publication. 



THE EXPERIMENT STATION. 



The work at the bureau's Experiment Station at Bethesda, Md., 

 under Dr. E. C. Schroedcr, superintendent, during the past li.scal 

 yv.iw lias been of the same general character as in former years, con- 

 sisting of independent investigations, investigations in cooperation 

 with other divisions of the bureau, and the provision of facilities for 

 the other divisions to make investigations of a kind that require farm 

 and field conditions not obtainable within the limits of the city. 

 During the year most of the work in animal husbandry was transferred 

 to the newly ])urchased farm at Bcltsville, Md., and it is proposed 

 henceforth to confine the work at Bethesda mainly to investigations 

 of animal diseases. 



TUBERCULOSIS INVESTIGATIONS. 



Tuberculosis was the subject of the more imjiortant investigations 

 of the year. Studies relative to the protective treatment of cattle 

 against thLs disea.se have been continued, and, while nothing radically 

 new has been discovered, the results obtained with various methods of 

 bovo-vaccination against tuberculosis are encouraging. No treat- 

 ment that will give cattle a i)racticall3^ valnal;le immunity against 

 tuberculosis without the inoculation of living tubercle bacilli has 

 yielded promising results, and there seems to be no reason for chang- 

 ing the formerly expressed view that the time has not yet come to jus- 



