PLATE 11 



EXPLANATION OF FIGURES 



Magnified portions of anterior part of vertical section of eye as indicated in 

 figures 57, 58, and 59. Explanations: b, break in the scleral plates where a blood- 

 vessel pierces these plates. C, cornea; Ca, corneal epithelium or conjunctiva; 

 Cj., conjunctiva; Cn, endothelium of cornea; Cp, ciliary processes; Cms, ciliary 

 muscles; Ep, epithelium; F, feather follicle; LI, lower lid; Ls, lymph spaces; M, 

 depressor muscle of lower lid, striated appearance shown at M; Mp, marginal 

 plate of nictitating membrane ; «Sp, scleral plates; T, tarsus of lower lid, its thick- 

 ness indicated by the two lines; Ul, upper lid. 



63 Magnified margin of lower lid as indicated in figures 57 and 59 at 63. X 

 250. 



64 Magnified portion of lower lid, showing upper portion of tarsus, T, as 

 indicated in figures 57 and 59 at 64. X 250. 



65 Magnified portion of lower lid through the depressor muscle of lid as 

 indicated in figures 57 and 59 at 65. X 250. 



66 Portion of cornea as indicated in fig. 58 at 66. X 250. 



67 Vertical section through the upper lid, showing relation of parts and the 

 sclerotic plate pierced by a blood-vessel. X 40. 



456 



