POODS. 115 



composition, may have a considerable effect when added 

 in moderate proportion to dry food. The highest value is 

 in short only obtained from food when it is skilfully 

 employed. 



There is finally a condition which we can never hope 

 to express by figures, but which has a considerable influ- 

 ence on the effect of any diet ; this is flavour. An agree- 

 able flavour stimulates appetite, and probably promotes 

 digestion. This part of the question belongs, however, 

 rather to practice than science. 



