1898-99.] Prof. Carlier on Changes in Neiut’s Stomach. 
681 
tremities. The cytoplasm is of a very pale grey, or even colour- 
less, perhaps tinted with pink. The nuclei are much wrinkled, 
measuring 9*2 x 1082 g, and contain very little chromatin, which 
is stained of a decided red tint, rendering it difficult to distinguish 
from the nucleoli. The lanthanin granules are very pale and 
almost invisible. Some nucleoli are being extruded, and mitosis 
appears arrested. 
Four hours after food . — The lumen is large and the cells very 
small, with only a few granules of zymogen in them. The proto- 
plasm often appears condensed, but hardly stains at all. The 
nuclei, which are very irregular, measure 8*8 x 11*8 g, and contain 
but very little chromatin, which seems concentrated. Nucleoli 
are not numerous, hut some are still apparently being extruded, 
and mitosis was not observed. 
Five hours after food. — (Fig. 8, coloured plate.) — The lumen is 
now somewhat smaller owing to increase in the size of the cells, 
which contain more zymogen granules of medium or small size that 
do not stain at all vividly. The protoplasm is pale blue, and the 
nuclei are less wrinkled and somewhat dusky in appearance, owing 
to increase in the number of lanthanin granules. These. are of 
small size and stain deeply blue. Extrusion of nucleoli appears 
to have ceased, as has also cell division. 
Six hours after food. — (Fig. 9, coloured plate.) — The lumen is 
still narrower, and the cells more protruding and filled with large 
zymogen granules; the cytoplasm 'stains pale blue. The nuclei 
are less angular, stain deeply, and have increased in size to 
11*44 x 14*55 g. Chromatin is more abundant in them, and the 
karyosomes show a tendency to unite together; they stain deep 
blue. Lanthanin granules are abundant, small in size, but do not 
produce clouding of the nucleus; they stain of a deep slate-blue 
colour, with a decided lilac tint. The nucleoli are not numerous, 
are usually of small size, and surrounded by a clear space free from 
lanthanin granules. No cells are dividing. 
Eight hours after food (pyloric end). — (Fig. 10, coloured plate.) 
— The lumen is small, the cells large and filled, though not 
crowded, with zymogen granules of large size. The protoplasm 
stains pale blue. The nuclei are somewhat plump, measure 
11*21 x 13*97 g, and contain a fair amount of blue staining chro- 
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