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addition to grass during the first half of each experiment, 

 and 8 Ib. of the same food during the second half. From the 

 results obtained, which have already been described in detail, 

 the following general conclusions may be drawn : 



(1) The advantage of giving dairy cows which are out on 

 grass during the summer months a supplementary ration of 

 from 4 to 8 Ib. of concentrated food, consisting of Bombay 

 cake and maize meal, is exceedingly small as regards the 

 yield of milk, provided the pasture is of average quality. 

 (Tables XXII. and XXVI.) 



(2) Any small benefit derived from concentrated food so 

 employed is observable only towards the end of the season, 

 when the pasture is beginning to become stale, and the nights 

 cold. (Tables XXII. and XXVI.) 



(3) Having regard to actual profit, it is doubtful whether 

 any concentrated food of this description should be used at 

 all' on grass during the summer, provided always that the 

 pasture is of average quality, the season normal, and the cows 

 in a healthy and thriving condition. It is certain that these 

 experiments conclusively show that the cost of the concen- 

 trated food, when used at the rate of from 4 to 8 Ib. per cow 

 per day, is out of all proportion to the value of the increase 

 in the milk yield, which occurred only towards the end of 

 the season. 



(4) The cows receiving nothing but grass gave, relatively, 

 a much more profitable return than those which were supplied 

 with concentrated food, the milk costing nearly double to 

 produce in the latter case what it did in the former. 



(5) To increase the concentrated food as the season ad- 

 vances is not to be recommended, for it does not, except 

 temporarily, cause an increase in the milk or even check the 

 fall in the yield, which always takes place as the lactation 

 period advances, while owing to the extra cost of the food, the 

 profit is relatively reduced. 



