Report on the Health of Animals of the Farm. 555 



same time a like quantity was injected into the left jugular vein 

 of another calf of the same age ; and. to a third calf seventeen days 

 old^ half-an-ounce of the same Jluid mixed icith two ounces of milk 

 was given as a draught. 



The temperature of each animal was taken prior to the 

 performance of the experiments, and found to be nearly equal in 

 all, varying only from 102*4° to 102'8.° 



April 12th. As no ill effects had been recognised in either 

 animal up to this time, an ounce of the same serous exudation was 

 given to the young calf, mixed with milk as before. A micro- 

 scopic examination of the fluid on this, as on the former occasion, 

 showed the presence of bacteridies in large numbers. 



loth. The young calf gives evidence of blood-poisoning. It 

 is remarkably dispirited, and refuses to suck. The temperature, 

 however, registers only 101*5°. 



Since the 10th, the temperature has fluctuated in all the 

 animals to a slight extent, but has never risen above 104,° a point 

 it has now attained in the animal into whose blood the serum 

 had been injected. 



16th. The indications of blood-poisoning are more aggra- 

 vated in the young calf. Indeed it is fast sinking. It lies in a 

 semi-comatose condition, and is constantly moaning. Tem- 

 perature 103°, Died at 7.30 p.m. No lesions, other than those 

 belonging to ordinary blood-poisoning, were met with on a post- 

 mortem examination in any organ of the body. 



23r^. Since the 16th, the health of the two eight-months-old 

 animals has been uninterrupted ; to-day, hoAvever, a slight swel- 

 ling has shown itself around the site of the punctured wound of 

 the vein. 



The inflammatory action giving rise to this swelling increased 

 day by day, and ultimately ended in the detachment of a small 

 slough on May 5th. With the exception of this local affection, 

 no ill consequences resulted from the injection of the serum into 

 the blood. 



The other calf also remained proof against the injection of the 

 fluid into the lungs. 



Both animals are still (July 31st) in the College Hospital and 

 in perfect health.* 



Notwithstanding these negative results, it was determined to 

 repeat the experiment of injecting pleuro-pneumonia exudation 

 fluid directly into the lungs of two other calves, and in much 

 larger quantities. 



The animals selected were about ten months old, very healthy 

 and in good condition. 



* Up to the time of this Report being sent to press — September — these animals 

 continued in perfect health. 



