JOURNAL OF MICROSCOPICAL SCIENCE. 



EXPLANATION OF PLATE XIX, 



Illustrating Mr. Hulke's observations on the Histology of 



the Eye. 



Four diagrrams of lens fibres. 



EXPLANATION OF PLAIE XX, 



Illustrating Dr. Ranvier's paper on the Cellular Elements of 



Connective Tissue. 

 Fig. 

 1. — Tendon from the tail of an albino rat. 



A. Tendon kept stretched, x 100 diameters ; a, cellular tubes ; 



b, bundles of connective tissue rendered transparent by 

 acetic acid. 



B. One of the cellular tubes under a power of 400 diameters. 

 2.— Cellular tubes from the tendons of the tail of the adult mole, x 400 



diameters ; a, unopened tube ; b, tube partly opened ; c, tube 

 nearly completely opened ; d, tube compressed by the con- 

 traction of the connective substance ; the nuclei are plicated. 



'6. — Tendon from the tail of an adult albino rat, X 400 diameters ; b, rolled - 

 up nucleus ; c and d, opened nuclei ; m, membrane of the 

 common sheath. 



4. — Tendon from ihe tail of an adult albino rat after 48 hours of inflammation, 

 X 400 diameters ; b, nucleus of the cell rendered apparent ; 

 i, substance of the connective-tissue bundles. 



5. — Transverse section of a tendon from the tail of an albino rat, aged one 

 month ; a, septa giving rise to finer septa appearing like 

 fibrills/. 



6. — Impregnation of the tendons by a solution of nitrate of silver of 2 

 to the 100. 

 A. Epithelium of the surface. B. Layer of sub-epithelial con- 

 nective tissue. C. Tube with the separation of the cells 

 marked by the deposit of silver. 



7. — Sub-cutaneous cellular tissue from the inguinal region of the dog; a, 

 connective bundles treated by formic acid, and presenting 

 annular fibres ; b, elastic fibres ; c, flat cells of the connective 

 tissue seen in front ; c, the same seen in profile ; n, cells 

 similar to embryonic cells and to the white corpuscles of 

 blood and lymph. 



