THE NEWTS STOMACH DURING DIGESTION 431 



The nuclei corne close up to the mucigen cups, there being little proto- 

 plasm between them, there are no red granules in this protoplasm but its 

 arrangement in the form of knotted cords can be well seen. It stains of a pale 

 violet slate colour. 



The nuclei are clouded with violet blue lanthanin granules b}' which 

 the chromatin is almost entirely obscured; where seen it is in small 

 amount, dusky blue in colour and arranged instreaks; the nuclear wall is 

 fairly thick some chromatin adhering to it, and appears slightly wrinkled. 

 The nuclei measure 20,55 X 5,97 i-". The nucleoli are often very large and 

 bright coloured, and are often being extruded. Small nuclcolar particles 

 are rare. 



Inner ends of cells pale blue and often very vacuolated, the cells are 

 somewhat turgid, but the lymph spaces around them are still visible though 

 narroW, 



1 14 Hoitrs after food. 



At the cardiac end the cups vary in size some being long, others much 

 shorter, they appear somewhat flattened exteraally and convex internally ; 

 they stain pale blue, but the individual mucigen granules are hardly discer- 

 nable. The cups measure on an average 12,1 X 9,4 p., that is to say they 

 are very much smaller than in the two preceeding cases. 



The protoplasm between the cups and the nuclei is packed with brightly 

 red staining granules of small size so numcrous that the spongioplasm is 

 quite invisible. Distance between cup and nucleus 3,66 to 4 [x. 



The nuclei vary considerably in depth of colour owing to the présence 

 of lanthanin in greater or less quantity; where abundant, it stains of a lilac 

 colour and where more scanty, of a pale blue. 



The nuclei which are rather smaller than before measure 17,25 X 7,031^- 

 and appear to fill the cells laterally. The chromatin is fairly abundant in 

 streaks and dashes and deep blue in colour. The nucleoli are often small and 

 not numcrous, but may be frequently seen in process of extrusion. 



Below the level of the nucleus the protoplasm stains of a grey colour 

 and présents few vacuoles. The lymph spaces between the cells are of con- 

 sidérable size. 



The cells measure in total length 44,8 \>.. 



Nearer the pyloric end the cups measure 14,8 X 11,16 (x and are 

 convex at both extremities ; they are filled with mucigen granules of small 



