DENTITION AND DENTAL DISEASES 263 



389. Cake showing an analysis of from 8 to 10 per cent, of oil is 

 more frequently met with than the above qualities, and is by no 

 means bad, but I should advise buyers never to go below this figure, 

 if a cake is wanted that will give satisfaction. It must be borne in 

 mind that the seed is crushed and pressed more for the oil it will 

 produce than for the cake alone. Linseed oil is worth about ^31 

 per ton, while the cake is valued at from £9 to £1 1 per ton. It is, 

 therefore, to the interest of the manufacturer to get the best and 

 mcst improved machinery that will extract the greatest percentage of 

 oil, and when this is done the cakes are generally hard and of a light 

 colour. The broad, thin, flat cakes are of this class, and are largely 

 manufactured in America, as well as in England. These often show 

 only from 6 to 7 per cent, of oil, and are useful for feeding growing 

 cattle, and, at times, profitable enough to buy ; but for quick feeding 

 of stock the old-fashioned oblong shapes, which are made from 

 screened seeds, are the best, when guaranteed 95 to 98 per cent, of 

 purity. They are much thicker, and richer in oil — oil may be looked 

 upon as ready-made fat — are darker in colour, and of a softer texture 

 than the other cakes. 



390. Good linseed cake is one of the safest foods we have, 

 and is of great value for feeding cattle and young stock, especially 

 in winter. It is also a useful feed for milch cows, though it is more 

 a fat-producing than a milk-producing food. Another recommenda- 

 tion in favour of linseed cake is that cattle fed upon it invariably 

 enjoy good health, and are not liable to contract skin or other dis- 

 eases. For a horse thriving badly, with an unhealthy, ragged, dingy- 

 looking coat, a handful each of crushed, pure linseed cake and whole 

 Canadian peas, given night and morning, mixed with corn and bran, 

 has a splendid effect. For the cow, linseed cake may be given at the 

 rate of from 3 to 9 pounds per day with the best possible results ; 

 whilst a young calf, six to eight weeks old, may receive it in 

 quantities of from 3 to 4 ounces with a little crushed oats and bran 

 daily, the quantity being gradually increased as the calf grows older. 



391. Decorticated Cotton Cake is cake made from seed 

 having the husk removed, and is chiefly made in America, as the 



