272 ANATOMY AND PHYSIOLOGY 



Tig. 



256. FiBRO-MEMBRANOTJS TISSUE. Prom the dermal mem- 



brane of a Stematmnenia. X 183 linear. Pages 

 100, 211. 



257. FiBRO-MEMBRANous TISSUE. Ill wMcli the layers of 



fibre cross each other at about right angles. From 

 Alcyoncellum robusta, Bowerbank. X 660 linear. 

 Page 100. 



258. FiBRO-MEMBRANOus TISSUE, In which the layers of 



fibre cross each other at various acute angles. 

 From Alcyoncellum robusta, Bowerbank. X 30& 

 linear. Page 100, 



FIBROUS STRUCTURES. 



PRIMITIVE FIBROUS TISSUE. 



259. Primitive fibrous structures. Dispersed on the 



inner surface of a portion of the dermal membrane 

 of a young Stematumenia j a a, cells in situ, 

 which have each produced a fibre. X 660 linear. 

 Page 70. 



260. Detached specimens of primitive fibrous tissue. 



In progressive stages of development. X 660 

 linear. Page 70. 



KERATOSE FIBROUS TISSUE. 



26 1 . Solid keratose fibre. From a cup-shaped specimen 



of the best Turkey sponge of commerce, in the 

 condition in which it came from the sea. X 175 

 linear. Page 73. 



262. Spiculated keratose fibre. From Chalina ocvlata, 



Bowerbank. X 176 linear. Pages 74, 208. 



