JOURNAL OF MICROSCOPICAL SCIENCE. 



DESCRIPTION OF PLATES I, II, III, IV, 



Illustrating Dr. Klein's paper on the Peripheral Distribution 

 of Non-medu Hated Nerve-Fibres. 



All these preparations are ])repared with ijold chloride. The mode of pre- 

 paration is to be found iu the text. 



PLATE I. 

 Fijr. 

 1. — Preparation of the rabbit's cornea. Mao-nifying power, Hartnack's 

 eyepiece No. 3, objective No. 10 immersion. 

 a. A larger nerve-fibre of the subepithelial plexus. 

 h. Small uerve-fibresof the subepithelial network. 

 c. Smallest fibrillfe of tlie same network. 

 2. — Nictitating membrane of the frog. Magnifying power, Hartnack's 

 eyepiece No. 3, objective No. 5. 



a. Larger non-medullated nerve-fibres (nerve-fibres of the second 

 order). 



b. Finer ones (nerve-fibres of the third order). 



c. Pigment-cells. 



d. A gland. 



3. — Nictitating membrane. Magnifying power, Hartnack's eyepiece No 

 3, objective No. 8. 



Distribution of the finer nerves under the epithelium of the poste- 

 rior surface. 



a. Nerve-fibres of the second order. 



b. Nerve-fibres of the third order. 



c. Finest nerve-fibrillse of the fourth order. 



4. — A capillary vessel of the nictitating membrane. Magnifying power, 

 Hartnack's eyepiece No. 3, objective No. 8. 

 a. The capillary vessel with blood-corpuscles. 

 b and c. Non-medullated nerve-fibres. 



PLATE IL 



5. — Nictitating membrane. Magnifying power, Hartnack's eyepiece No. 

 3, objective No. 8. 



a. Capillary vessel. 



b. Blood-corpuscles. 



c and d. Non-medullated nerve-fibres. 

 6, — A gland from the nictitating membrane. Magnifying power, Hartnack's 

 eyepiece No. 3, objective No. 8, 



a. The gland. 



b, c, and d. Non-medullated nerve-fibres. 



7. — Nictitating membrane. Magnifying power Hartnack's eyepiece No. 3, 

 objective No. 9, immersion. 

 a. Branched cells, b. Nucleus. 



