28 Report oF THE DIRECTOR OF THE 
Proximate Composition of Feed Fed and also the Weight of 
Each Animal for Each Month of the Investigation — General 
Explanation of Tables Io to 78. 
The following tables (1 to 9, inclusive) give the number of 
pounds of each food constituent consumed every month, as also 
the weight of each animal. 
Each table will show very considerable changes in the proxi- 
mate composition of the several rations, and the result of such 
changes may be studied with profit in connection with the tables 
following later, in which tables are given the milk yield and its 
composition for each month of the experiment. 
The tables 10 and 11 are continuations from the Twelfth 
Annual Report of the jirst period of lactation. 
The first gives the food constituents of these three animals, 
the second gives the amount and composition of the milk yield. 
Tables 12 and 13 are continuations from the Twelfth Annual 
Report of the second period of lactation, presenting the same 
data as to food and milk yield. 
Tables 14 and 15 are continuations from the Twelfth Annual 
Report of the ¢izrd period of lacation for four animals. 
Tables 16 to 19, inclusive, give similar data for two animals in 
their jirst period of lactation. 
Tables 20 to 29, inclusive, give similar results for five animals 
in their second period of lactation. 
Tables 30 to 35, inclusive, give similar data for chree animals 
in their third period of lactation. 
Tables 36 to 47, inclusive, give similar data for six animals in 
their fourth period of Totton 
Tables 48 and 49 give similar data for one animal in her fth 
period of lactation. 
Tables 50 to 53, inclusive, give the cost of production of milk 
and fat for each animal for the first, second, third and fourth 
periods of lactation. 
Table 54 gives the average yield of milk and per cent. of fat, 
for each cow, each month and. of each period of lactation. 
Table 55 gives the relative cost of production of milk and fat 
for each animal and for each breed for the jirst period of - 
lactation. | 
