No. 639] SHORTER ARTICLES AND DISCUSSION 373 



body view. None of the facts explicable by the amboceptor 

 appear to become inexplicable when this body is analyzed into 

 an agglutinin and a lipolysin. As for the difficulties of constant 

 association, these are no greater in tliis case than the difficulties 

 which arise because serum albumin ami swmn pldhiilin always 

 occur together in the blood. 



February 7, 1921 ' 



DESCRIPTION OF A PECULIAR YOLK MASS IX THE 

 OVIDUCT OF A HEN 



A DESCRH'TioN of this Specimen seems desirable for two chief 

 reasons: Fn-st, because of its unique nature; second, because it 

 supplies the data with wOiich to answer the (lucstion whether 

 reverse movement, possibly antii)eristalsis, occurs m the forma- 

 tion of double eggs and similar anomalies. 



The specinK^n was pn^seiited to the histological laboratorv by 

 Asliton Barbour, of Cliarlottcsvillc, Va.. six liours after it had 



cribed it as having Itccn lakcii Irom tiic rn-j: \r,i<s. When 

 questioned, he was positive iliat lie had n merd a iitiniher of 

 developing eggs, "little xeMow halN. atfaehed to the dorsal 

 surface of the abdominal r:\\\\v. 11 is aiiatoimcal observations 

 stopped at tliis point. 



