LIST OF MICROSCOPICAL SPECIMENS. 343 



No. of diameters 

 No. magnified. 



145. Elastic tissue of large artery ' . . 220 



146. Triangular muscular fibre cells Aorta human sub- 



ject 220 



147. Elastic tissue of reins 220 



148. Striated muscular tissue of cava near auricle 



Frog 220 



149. Large arteries, frog, showing ganglia and trunks of 



nerve-fibres in great number . . . . . . 40 



150. Small artery of frog, showing muscular fibres and 



numerous nerve-fibres distributed in the connec- 

 tive tissue around . . . . . , . . . . 220 



151. Nerve-fibres distributed to muscular fibre-cells 



Small artery frog. With the aid of a high power, 

 3^, some of the finest ramifications of the nerve- 

 fibres may be traced amongst the muscular fibre- 

 cells 220 



152. Nerve-fibres ramifying in the areolar coat of a very 



small artery Frog 220 



153. Nerves distributed to arteries, veins, and capillaries 



of bat's- wing 220 



154. Dark -bordered nerve-trunks and branches to capil- 



lary vessels, which run parallel to the vessel, and 

 are connected at intervals by communicating 

 branches. See Plate XIX, page 315. In this spe- 

 cimen fine nerve-fibres can be traced from trunks 

 consisting of five or six fine dark-bordered nerve- 

 fibres, and followed to the capillary vessels. From 

 the connective tissue covering part of the mylo- 

 hyoid muscle of the hyla or green-tree frog . . 215 



155. Part of same specimen showing nerve-fibres ramify- 



ing close to capillaries . . . . . . . . 700 



156. Fine nerve-fibres distributed to the cornea. Hyla. 



In this specimen numerous networks of extremely 

 fine nerve-fibres are seen in the substance of the 

 corneal tissue. Most of the masses of germinal 

 matter in every part of the field belong to the 

 corneal tissue, and are the so-called connective 

 tissue corpuscles, but oval masses of bioplasm are 

 also seen in connection with the nerve-fibres. 

 The nerves are not continuous with the branches 

 of the connective tissue corpuscles as Kuhne 

 supposed, nor do they give off numerous branches 

 to the epithelium of the conjunctiva, as recently 

 stated by Colmheim 220 



