anatomical structure of the eye. 8 1 
these parts are joined to the sclerotic coat; d, d, the ciliary 
ligament, and e, e, the choroid membrane ; magnified ten 
diameters. 
Fig. 4. The same as the preceding figure, with the iris re- 
moved, to give a back view of the ciliary processes at a, a\ b, b, 
shows the seam or ligament by which these parts are joined 
to the sclerotic coat ; c , c, the ciliary ligament, and d, d, the 
choroid membrane ; magnified ten diameters. 
Fig. 5. An equally sized portion of the anterior part of the 
capsule of the crystalline lens, a, a, and of the capsule of the 
vitreous humor, b, c, d, exactly lying under, and correspond- 
ing with the preceding figures 2, 3, and 4, and showing the 
bundles of fibres, b, b, by which the capsule of the crystalline 
lens is connected with the capsule of the vitreous humor ; 
and how the pigment from the ciliary processes, b, b, and 
from the radiated circle, c, c, is impressed on it ; magnified 
ten diameters. 
Fig. 6. A couple of the fibrous bundles, with the nigrum 
pigmentum nearly removed ; magnified twenty diameters. 
Fig. 7. Front view of one of the ciliary processes laid 
open, and the pigmentum removed, to show the plexus of 
vessels in its membranous wings, from which the nigrum 
pigmentum seems to be secreted ; magnified twenty diame- 
ters. 
Fig. 8. A back view of the same ; magnified twenty dia- 
meters. 
Fig. 9. An external view of a small portion of the cho- 
roid membrane ; magnified ten diameters. 
MDCCCXXII. 
M 
