JOURNAL OP MICROSCOPICAL SCIENCE. 



EXPLANATION OF PLATE VII, 



Illustrating Dr. Klein^s " Observations on the Structure 

 of Cells and Nuclei/' 



Fig. 1. — Epithelium covering the surface of a villus, from a section through 

 small intestine of pig. 



Fig. 2. — Epithelium lining a Lieberkiihn's crypt of large intestine of pig. 



Fig. 3. — Goblet cells of a Lieberkiihn's crypt of large intestine of pig ; 

 «, as viewed from the surface ; b, as viewed from the side. 



Fig. 4. — Epithelium lining the tube of a mucous gland of tongue of dog. 



Fig. 5. — Part of a tube of mucous gland of epiglottis of a child; at a, 

 the epithelial cells are in state of secretion ; at b, in a state of rest. 



Fig. 6. — Epithelium lining a tube of Brunner's gland of duodenum of 

 dog. The epithelial cells after prolonged secretion. 



Fig. 7. — Epithelium of Brunner's gland of dog in a state of secretion. 



Fig. 8. — The same epithelium viewed from the surface. 



Fig. 9. — Part of a tube of the epididymis of full-grown dog. a, ciliated 

 epithelium ; in the depth is seen a row of deeply-stained nuclei belonging to 

 a layer of small cells ; b, muscular coat. 



Fig. 10. — Two epithelial cells of the same organ more highly magnified. 



Fig. 11. — Part of a longitudinal section of the tube of a sweat-gland of 

 ear-lobe of pig. «, epithelial lining ; i, muscular coat ; c, membrana 

 propria. 



Fig. 12. — Section through the tube of a mucous gland of pharynx of 

 dog ; c, mucous cells lining the lumen ; j), parietal cells. The details of 

 structure of the individual cells in this and the next fig. (13) are not 

 carried out ; they are identical with those shown in fig. 17. 



Fig. 13. — From a section through submaxillary gland of dog. c, mucous 

 cells ; p, parietal cells. 



Fig. 14 a. — Interstitial epithelial cells — so-called plasma-cells — of testis 

 of full-grown cat. 



Fig. 14 b. — Same elements of testis of guinea-pig. 



Fig. 15 a. — Epithelial cells lining a seminal tube of testis of cat. 



Fig. 15 b. — Same elements of testis of guinea-pig. 



Fig. 16. — Part of sebaceous gland of skin of sheep, a, peripheral epi- 

 thelial cells ; b, central ones. 



Fig. 17. — Part of the tube of a peptic gland of dog. The tube is cut 

 slightly obliquely, c, chief cells ; p, parietal cells. 



Fig. 18 a, — Epithelial cells of the middle layers of epithelium lining the 

 oesophagus of a child. The connection of the network of contiguous cells 

 should be more distinct. 



Fig. is b. — Same elements more highly magnified, but ouly the nuclei 

 are represented in detail. 



Fig. 19. — Epithelial cells of the rete Malpighii of skin of sheep. 



Fig. 20. — Liver cells of guinea-pig. 



Figs. 1, 3, and 10 drawn with Hartnack's Ocul. II, Obj. Immersion 10. 

 Figs. 14 a and 18 b, Hartnack III, 10 Im. The other figures arc drawn 

 with Hartnack's Ocul. II, Zeiss' Obi. F. 



