216 Rerort oF THE First ASsIsTANT OF THE 
of the ration and the fuel value was increased. There was a fairly 
normal decrease in the milk yield. There was an increase in the 
per cent. and in the amount of fat. The cost of milk, milk-solids, 
and fat was greater than for the third period. From September 
1 to15 the greatest daily average milk yield was 34.2 pounds 
and the smallest 12.4 pounds. The highest average per cent. of 
fat was 5.00 and the lowest 2.50. From September 16 to 30 the 
extremes were 36.7 pounds and 11.6 pounds of milk and 5.20 
per cent. and 1.08 of fat. From October 1 to 15 the extremes 
were in milk yield 34.5 pounds and 10.6 pounds and in percentage 
of fat 5.90 and 2.40. The composition of the hay fed during this — 
trial, of the oat-and-pea forage and of the mixed grain, No. 27, will 
be found on page 212. The composition of each of the other 
foods is shown in the following table: 
