I9I4] Alfred P. Lothrop 47 1 



was observed in this fraction. If uric acid were formed a consid- 

 erable part, if not all, would be dissolved by the alcohol (see preced- 

 ing abstract), but there is only a comparatively slight increase of 

 nitrogen in this fraction. 



I therefore conclude that the greater part of the " Entwicklungs- 

 arbeit " of Cryptobranchus comes f rom a carbohydrate and, if this 

 carbohydrate is in the form of a glycoprotein,^** the amino acids are 

 not broken down to urea or uric acid but are utilized in part in their 

 original form and in part to furnish the nitrogen for lecithin and 

 other nitrogenous Compounds necessary for the development of the 

 growing embryo. 



B. ABSTRACT OF A PAPER FROM THE COLUMBIA BIOCHEM. DEP'T 



132. Comment on parathyroidectomy, with an exhibition of 

 Ivanoff's drawings on the location of the parathyroid glands 

 in guinea pigs and field mice. William J. Gies. The author re- 

 ferred to various operative procedures for the removal of the 

 parathyroid glands f rom small animals, especially Erdheim's method, 

 and called particular attention to Ivanoff's illustrated dissertation 

 — one of the few available sources of Information regarding the 

 relative positions of the thyroids and parathyroids in small ro- 

 dents.^^ A copy of this dissertation, from the Surgeon General's 

 Library (Washington, D. C), was shown and discussed. 



(The proceedings of the June meeting will he puhlished in the next number of 



the Bulletin) 



Biochemical Laboratory of Columbia University, 

 College of Physicians and Surgeons, 

 New York 



1* More material will be secured another year to determine this point. 

 IS Ivanoflf : Contribution a l'etude des glandules parathyroides chez les ron- 

 geurs (cobaye et mulot). These: Geneva, 1905. 



