30 Scientific Proceedings, tioi/al Dublin Society. 



over a period of six weeks, made a daily gain of 3-75 lbs. upon pasture alotie. 

 One of the four bullocks made four pounds a day. It may be that similar 

 gains are not impossible upon long fodder, roots, and concentrates, and 

 the units necessary to produce them may be less than in the proportion 

 of 19'8 units for 3*1 lbs. increase. 



All that can be done in the meantime is to indicate the daily gains 

 shown to be readily attainable — not the maxinuuu —with a reasonable — not 

 the minimum — number of food-units. This is done by the continuous straight 

 line drawn across the diagram. It will be seen that this line runs well 

 above, or just under, the numbers of food-units which have produced daily 

 gains of two pounds or over, namely : — 



14'2o units for 6-cwt. beasts. 



But this line must not be used without the caution that the experiments 

 show the rations to have very variable efficiencies. It will be seen that in 

 every group a large number of the rations do not produce two pounds 

 a day. If lines be drawn upwards through the average of the dots in 

 every group, the dots which fall to the left will indicate the less effective, 

 those to the right the more effective, rations. Not only so, but the 

 distances of the dots from the upright lines may be taken as indications 

 of the efficiency of the rations concerned. On this understanding the 

 following table shows the relative inefficiencies (-) and efficiencies (+) of 

 the rations in each group: — 



