766 ANNUAL REPORT OF NEW- YORK 



led to expect from their touch and his experience of my feeding. 

 Having told him that they had recently suffered from soreness of 

 mouth, by which, with evident symptoms of appetite, they were 

 hindered from eating the necessary quantity, Mr. Freeman re- 

 marked that he well knew from experience that cattle which had 

 recently suffered from this, (known here as the mouth and foot 

 sore complaint,) were deficient in loose fat. I may also here 

 state, as a matter of some physiological interest, that cattle which 

 have been partially damaged in the lung from previous attack of 

 pleuro, or other causes, are invariably found deficient in their 

 store of loose fat. 



It will be observed, that cod-liver oil contains in the same 

 space the greatest proportion of elements which, in combination 

 with the oxygen of the air, are necessary for the support of 

 vitality, and with this by far the greatest proportion of olein in 

 comparison with other oils in their natural state; and it seems 

 worthy of remark, that this oil is held in the greatest esteem for 

 pulmonary complaints; next to this, and almost in equal repute, 

 is pure olein. 



From what has been premised, it will be found that from con- 

 sideration of the symptoms of pleui-o-pneumonia, I was led to 

 suppose an abnormal consumption of the elements which support 

 respiration, I have sought to meet this by a supply of food par- 

 ticularly rich in such elements, and in a form most available for 

 their purpose. My observations on the effects tend to confirm 

 my opinion that by this means I supply in food what would oth- 

 erwise be abstracted from the system with greater labor to the 

 organ, and with impoverishment, thereby weakening the ability 

 to resist disease. I am therefore encouraged to offer it for the 

 consideration of those who give their attention to pathological 

 chemistry. 



If any owners of cattle should adopt my treatment, I urge the 

 most scrupulous attention to the treatment here prescribed for 

 the sick animal. I am clearly of opinion that one of the animals 

 which died might, by a greater observance of this, have beer 

 restored. 



In the course of the foregoing observations, I have made fre- 



' quent allusion to Lehmann's "Physiological Chemistry." About 



a year since I obtained this work on loan for a short time from a 



