JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATE VII, 
Tllustrating Mr. Nunneley’s paper on the Crystalline Lens. 
Fig. 
ee Lens of infant. 64. Of young adult. c. Of old person. 
2.—Enlarged lens, to show the different curves of its two surfaces and the 
arrangement of its layers of fibres. 
' 3.—a. Two fibres from the middle part (midway from margin and axis) of 
lens of haddock. 4. Of cod, after being in boiling water and 
well dried, when the fibres are very clear and transparent. 
' 4.—a. Three fibres from middle part of lens of frog. Two are shown 
completely twisted over, by which their flat riband-like form is 
well seen. 4. A group of fibres seen on the edge. 
5.—From turtle. a. Two fibres from near the surface of lens. 6. A 
fibre from the same layer in ether, to show the serrations more 
developed by this agent. c. Four fibres from near the axis, where 
many are almost cylindrical, and marked with longitudinal lines as 
though made up of smaller filaments. 
6.—From lens of a cock. a. Cells filled with granules from quite the 
outer surface of lens close to the capsule. 6. Other of these cells 
elongated, as though changing into fibres. c. Fibres from outer 
layers of lens. d. Fibres from tear the axis of lens, nearly 
cylindrical, but some, as on right, are larger and flat, and at e a 
broad one is shown curved over. 
7.—Fibres from the lens of rat, squirrel, and hare. a@. From middle. 4. 
From near axis of lens of rat. c. From near outer part of lens of 
squirrel. d. Four fibres from middle of lens of hare after coagu- 
lation and being dried, two are seen flat, and two on edges. 
8.—From lens of ox. a. Fibres from near surface. 8. From near middle. 
c. From near axis of lens. d. Bundle of fibres broken transversely 
from near middle of lens. e. Bundle of fibres seen edgeways. 
9.—From cat. a. Two fibres from outer layer showing how very irregular 
in outline they become from the effect of water at 212°F. &. 
Fibres from near the middle of lens (midway between axis and 
margin) of other eye of same animal. 
10.—From human lens. a. Fibre from outer layer seen on the flat surface. 
6. Another fibre from same layer curved over. c. Fibre seen on 
its edge. d. Fibres from near the middle of Jens. 
11.—Epithelial cells from inner surface of capsule of lens. a. From anterior 
capsule. 0%. From posterior, where I have found them arranged 
more or less in rows, so as to present a somewhat beaded appear- 
ance. From sheep. 
12.—Cells from inner surface of anterior wall of Petit’s canal or suspensory 
ligament, in some animals they are more or less oval, and contain 
a nucleus with nucleoli, from sheep. All these cells are rendered 
more distinct by acetic acid. 
13.—Cells from inner surface of capsule of lens of duck. 
The figures are magnified 450 diameters. 
