102 EXPERIMENT STATION RECORD. 



old weighing - 50 kg. In the frequent references to his results this 

 calculated average is usually quoted instead of the results actually 

 obtained. 



While there is no reason for doubting Soxhlet's conclusions, it would 

 be interesting to repeat the experiment and make others along similar 

 lines. A considerable number of calf-feeding experiments have been 

 made at the stations, but almost no work has been done on the metabo- 

 lism of the calf. 



The interesting investigations by Storch on the constitution of the 

 fat globules of cow's milk, noticed in this number of the Eecord, revive 

 the old and now generally discarded membrane theory. The author 

 believes he has proved the existence of a slimy albuminous membrane 

 around the fat globules. He has studied the subject in a somewhat dif- 

 ferent way from others. The conclusions appear to be borne out by a 

 large amount of carefully executed work. But the behavior of artificial 

 emulsions, as, for instance, of fluid butter fat or oil with skim milk, under 

 conditions similar to those to which the milk was subjected was not 

 studied. Many scientists will hesitate to accept the theory advanced 

 until it has been shown that there are specific differences between the 

 action of the fat globules of milk and the fine globules of artificial 

 emulsions. This would furnish an interesting theme for further inves- 

 tigation. 



