Breed, Cellular Elements in Milk. 421 



one because she was in an early stage of lactation and the other 

 because of the inflamed and indurated condition of the udder. 

 It has been found that there is wide Variation in the number 

 of cells present in the milk drawn from the four quarters of the 

 udder as well as from day to day in the milk of Single cows. These 

 sudden and inexplicable variations indicate that their cause is 

 transient and trivial. If so, then the variations in number of cells 

 cannot have the sanitary significance which has been ascribed 

 to them. 



Herr Prof. D. J. Edwards (New York City) hält seinen 

 angekündigten Vortrag: 



The Idiochromosomes in Ascaris. 



Inhalt: Sex-producing chromosomes in A scaris mega- 

 locephala, A. lumbricoides, A. canis with discussion of the re- 

 lationship of the Ascaris types to other types of chromosomes. 



