The Lacrymal and Meibomian Glands, and Adjacent 

 Organs of the Eve. 



I, i. Inner wall of orbit. 2, 2. Inner portion of orbicularis 

 palpebrarum. 3, 3. Attachment to circumference of base of 

 orbit. 4. Orifice for transmission of nasal artery. 5. Muscle 

 of Horner (tensor tarsi) 6, 6. Meibomian glands. 7, 7. 

 Orbital portion of lacrymal gland. 8, 9, 10. Palpebral por- 

 tion. 11, 11. Mouths of excretory ducts. 12, 13. Lacrymal 

 puncta. 



Vertical Section of Eye in its Antero-Posterior Axis. 



1. Optic nerve. 2. Middle portion of sclerotic. 3. Posterior 

 portion. 4. External of optic nerve 5. Internal tunic. 6. 

 Sclerotic beneath insertion of superior rectus. 7. Sclerotic 

 in advance of insertion of superior rectus. 8, 8. Superior 

 and inferior recti. 9 Cornea. 10. Its central portion. 11. 

 Posterior elastic lamina. 12. Junction of cornea and sclero- 

 tic superiorly. 13. Inferior junction. 14, 14. Canal of Schlemm. 

 15. Choroid. 16. Choroidal zone and ciliary processes. 17. 

 Ciliary muscle. 18. Ciliary body 19. Retina. 20. Origin of 

 retina. 21. Its anterior limit. 22. Central artery of retina. 

 23. Branches of central artery. 24. Hyaloid membrane. 25. 

 Zone of Zinn. 26. Posterior wall of canal of Petit, formed by 

 hyaloid membrane. 27. Anterior wall of same canal, formed 

 by the zone of Zinn. 28. Crystalline lens. 29. Iris. 30. 

 Pupil. 31. Posterior chamber. 32. Anterior chamber. 



Iris and Choroid. 

 1. Optic nerve. 2, 2, 2, 2. Sclerotic, divided in four equal parts 

 and turned back. 3, 3. Pigmentary granulation of its inner 

 layer. 4. Section of lamina fusca. 5,5,5,5. Cornea, divided 

 in four equal parts. 6, 6. Canal of Schlemm 7. Outer sur- 

 face of choroid. 8. Superior and internal trunk of vasa vor- 

 ticosa. 9, 9. Irregular border limiting the choroid zone 

 posteriorly. 10, 10. Anterior half of this zone; ciliary mus- 

 cle. 11, 11. Ciliary nerves 12 Long ciliary artery. 13,13, 

 13, 13 Anterior ciliary arteries. 14. Iris. 15. Small arterial 

 circle of iris. 16. Pupillary orifice. 



The Ciliary Muscle. 



, 1. Crystalline lens. 2. Hyaloid membrane. 3, 3 Zone of 

 Zinn. 4. Iris. 5,5. Radiating portion of ciliary muscle, b. 

 Section of circular portion. 7. Venous plexus of a ciliary 

 process. 8. Sclerotic. 9. Middle layer of cornea. 10. An- 

 terior hyaline laser of cornea. 11. Epithelial covering of 

 this layer. 12. Posterior hyaline layer of the conn 

 membrane of Descemet. 13. Fibers in which this layer ter- 

 minates, or ligami-ntum pectinatum 14. Epithelial covering 

 of posterior hyaline layer. 15. Junction of sclerotic and cor- 

 nea. 16. Section of canal of Schlemm. 



