226 Origin and Destiny of Cholesterol in the Animal Organism. 
in the very large quantities of material examined to have obtained con- 
siderable quantities of cholesterol as such, or in a modified form as in the 
human subject. In the cow, for instance, every 100 c.c. of bile contains 
approximately 0°07 gramme of cholesterol, and supposing in this animal 
only 23 litres are poured into the intestine per day, this would mean a 
daily excretion of nearly 2 grammes, which we could not possibly have 
failed to discover. It follows, therefore, that cholesterol of the bile must 
either have been reabsorbed with the bile salts in the gut, or else destroyed. 
We are at present carrying out experiments on this subject with herbivora 
and other animals, an account of some of which we hope shortly to have 
the honour of laying before the Society. 
This work has been carried out with the help of a grant which was made 
to us by the Government Grant Committee of the Royal Society, for which 
we take this opportunity of expressing our thanks. 
