678 Proceedings of Royal Society of Edinburgh. [sess. 
does not stain so vividly as in the fasting animal. The nuclei 
are very conspicuous, owing to their deep blue colour, due not to 
chromatin, which is practically invisible, but to the multitude of 
fine deeply-staining lanthanin granules that completely fill the 
nucleus. When a view of the chromatin is obtainable, it is seen 
to be scanty, but of a deeper blue colour than in the previous 
section. 
The average size of the nucleus is 10*57 x 12*54 g. It is there- 
fore becoming larger, probably swelling up by absorption of 
material from the protoplasm, and this agrees well with the dis- 
appearance of the wrinkles from its surface, so obvious in the 
foregoing preparation. The nucleoli are sometimes large, and' 
often situated near the margin of the nucleus, and a few may still 
be seen in process of ejection. 
Near the pyloric end the nuclei are rather lilac than blue in tint, 
owing to the lanthanin granules exhibiting an affinity for the acid 
as well as for the basic dye, which indicates that their nature is 
becoming modified. . Nucleolar expulsion is going on apace. 
We have here a still further stage of nuclear repair. 
(5) One hundred and fourteen hours after food . — (Stomach quite 
empty, intestines filled with digested worm.) (Photo 5.) 
The gland lumen is small ; the cells lining it are large and filled 
with brightly-stained zymogen granules that vary considerably in 
size, the larger ones being usually' situated in the neighbourhood of 
the nuclei. The granules average 1*6 to 1*4 g in diameter. The 
cell-protoplasm, which is hardly visible owing to the multitude of 
granules it contains, stains of a pale blue colour of the same tint as 
in the fasting animal. 
The nuclei are plump-looking, and measure on an average 
12*57 x 13*18 g; they are therefore bigger than those of the 
previous section. They also exceed in size those of the newt that 
had long fasted, and are less angular. Many of these nuclei con- 
tain great numbers of tiny lanthanin granules that stain of a 
beautiful lilac tint, but though very numerous they no longer 
obscure the other elements. They are in a similar but more 
advanced condition than those of the pyloric end in the last 
preparation. 
The chromatin is not very abundant, though more so than in 
