THE RANGE OF ANIMAL DIET 183 



out of boiled fishes' heads, and the diet seems to have 

 agreed with it. If anyone doubts the capacity of ex- 

 tending their food-range possessed by grass-eating 

 creatures like cattle and sheep, and the scarcely less 

 graminivorous horse which has, however, a strong 

 tendency, inherited from some remote ancestor, to eat 

 bark and shoots like a rhinoceros he need only run 

 over the list of modern cattle-foods. Since the days 

 when the Irishman had not learnt to make hay, and all 

 his cattle were consequently killed off by Elizabeth's 

 soldiers in the low valleys to which they were driven 

 for food in winter, the cow has added to her menu 

 hay, ensilage, sweet and sour, turnips, beet, Indian corn, 

 cocoa cake, cotton -seed cake, rape-seed cake, locust 

 beans, sugar, and ' grains/ Besides these, she has learnt 

 to eat and prefer cooked food served warm to raw food 

 eaten cold, and before long will probably be taught to 

 supplement her cabbage and grass with ' cow-biscuits/ 

 specially prepared to increase her yield of butter. 



Horses, though training best on hay and oats, now 

 eat cooked food, a mixture of hay, bran, vegetables, and 

 corn being steamed and served up in most of the great 

 London stables ; and the only domestic creature whose 

 tendency to enlarge its food-range is discouraged is the 

 pig, not because it is bad for the animal, but because we 

 desire by limiting its choice of food to extend our own. 

 For our own purposes we have induced the dog to 



