4o8 



E. -WACE CARLIER 



EXPERIMENTS OF SERIES I, 



Fasting newt ten days after food. 



Plate I, fig. 1. 



The oxyntic cells are large, and do not occlude the lumen which varies 

 considerably in size, but is for the most part narrow. The cells which are 

 pyramidal in shape with broad bases and rounded apices are enclosed m a 

 thin cell wall that stains of a pale blue colour with methyl blue ; they are 

 connected together laterally for about a third of their length. The spongio- 

 plasm is somewhat scanty and wide meshed ; it stains of a pale sky blue 

 colour. The cells contain numerous zymogen granules that stain of a vivid 

 red colour and vary in size from 2,8 p to 1 p or less in diameter, the ma- 

 jority measure from 1,5 1^ to 2 1^. Their great affinity for eosine pomts to 

 their albuminous nature. The granules are not crowded together. Each 

 granule is lodged in a tiny compartment of the spongioplasm apparently 

 containing fluid as maintained for those of the lachrymal and other glands 

 by A. Nicolas -^ The granules do not touch the spongioplasm being sepa- 

 rated every where from it by an unstained space. It is quite impossible 

 to distinguish any arrangement of the cells into zones as is the case with 

 many gland cells, but the smaller granules appear to be rather more nume- 

 rous towards the base. 



The nuclei are large 10,6 ^ X 12,8 p. on the average and présent an ir- 

 regular and even angular outline, i. e. hâve a somewhat shriveled appearance 

 as described by Langley '" in fasting newts. The chromatin is somewhat 

 small in amount and split up into irregular masses, rounded or irregularly 

 oval in shape. They vary from quite minute dots to masses measuring 

 'i,5 X 1,6 I'-. They are widely separated from one another, and are scattered 

 through the nucleus, many adhering to the nuclear membrane, thereby pro- 

 ducing a thin irregular layer of chromatin within it. The chromatin stains 

 of an ultramarine tint, and the linin network is scarcely visible owing to 

 its being almost unstained. Plate III, fig. 1. 



The nuclear juice is coagulated by the action of the corrosive subli- 

 mate and precipitated in the form of small granules of equal size named 

 Œdématine by F. Reinke -« and Lauthanin by M. Heidenhain '»; thèse 

 granules are not crowded together, they stain ofavery pale sky blue colour 

 i. e. they are cyanophile (Krasser "). 



