BUREAU OF ANIMAL INDUSTRY. 37 



Cattle and hogs were provided for the biochemic division for special 

 experiments concerning hog diseases, and these animals were treated 

 with material prepared by the division in accordance with instructions 

 accompanying such material. 



As in former years, a large number of small animals for experiment 

 purposes were raised at the station and used or forwarded to the labo- 

 ratories as occasion required. 



Several new buildings were constructed, much necessary fencing 

 and refencing was done, and the water system improved and extended. 

 A fairly successful attempt was made to raise a supply of green feed 

 for small experiment and breeding animals. Work of this kind makes 

 excellent returns for the time and thought given to it, and it is to be 

 regretted that the area of ground which is available for cultivation is 

 limited to less than 1 acre. 



The need for additional land is constantly and urgently felt. On a 

 total of 20 acres, much of which is occupied by buildings, roadways, 

 outdoor experiment cages and quarantine pens, the following animals, 

 employed in widely different experiments, together with the facilities 

 for handling them and keeping the various infections under proper 

 control, are collected : 



(1) A herd of 72 antitoxine animals, consisting of horses, mules, 

 cattle, and donkeys, for supplying hog-cholera, swine-plague, tetanus, 

 and two kinds of tubercular serum. 



(2) Several animals, a horse, cattle, and donkeys, for supplying 

 normal serum for a variety of purposes. 



(3) A herd of a dozen or more cattle either affected with tubercu- 

 losis or being employed in experiments concerning this disease. 



(4) A flock of 50 or more sheep, subjects of investigations concern- 

 ing sheep scab, foot rot, blackleg, pseudo-tuberculosis, true tubercu- 

 losis, and various internal animal parasites. 



Half a dozen cattle used in Texas-fever investigations. 



Cattle on which at least half a dozen different varieties of ticks 

 are being grown, all of which must be kept well separated and under 

 conditions which will prevent the ticks from getting on any animals 

 except those which are intentionally infected. 



A small herd of cattle used in tick-dipping experiments. 



About a hundred hogs, in special hog-cholera and swine-plague 

 experiments, in which at least a dozen different bacteria, supposedly 

 pathogenic, are being handled. 



( 9) Dogs in quarantine and under observation for rabies. 



(10) Horses affected with maladie du coit. 



(11) Goats in special milk work. 



(12) Donkeys, hogs, calves, and monkeys, and several kinds of 

 smaller animals in special tuberculosis investigations. 



(13) A collection of brood sows, for producing young pigs for spe- 

 cial swine-disease investigations. 



(14) A number of normal work horses. 



Our fields are so small for the animals confined in them that they 

 remain bare of vegetation the entire year and present the appearance 

 of a desert. 



DAIRY DIVISION. 



A general survey of the condition of the dairy industry of the 

 country at large was begun upon the organization of the dairy divi- 

 sion. This has been continued and special inquiries have been made, 



(5) 

 (6) 



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