LESSONS FROM THE MICROSCOPE. 105 



The mucous membrane lining the 

 mou th, nose and other cavities com- 

 Ceiis of Kpi- municating with the outside, is covered 



dermis 



at (24) we have a magnified view of these cells from 

 the mouth; at (25) we see, as through a micro- 

 scope, the cells of the epidermis. Though the worn- 

 out particles of the cr.ticle can be seen with the 

 naked eye, their peculiar structure can not bo thus 

 perceived. 



The choroid coat of the eye is of a 



Pigment from 



<;oat dark color, and absorbs the superflu- 

 (26). ous ^^ brought into the eye. Its 



color is due to a dark pigment consisting of regu- 

 larly formed six-sided cells. Their shape is seen 

 at (26). 



The bile is secreted in the liver cells, 



Other Views . * i 



to (3 1), a microscopic view of which is given 



us at (28). 



Each of the thirty-one pairs of spinal nerves has 

 two branches, as seen from (29). The posterior 

 root has a ganglion of nerve matter which has the 

 power of originating motion. (30 and (31) show 

 us how the different nerve-cells appear when seen 

 through the microscope. 



Thus we have afforded us a series of views by a 

 careful study of which we may be led to appreciate 

 the fact that we are "fearfully and wonderfully 

 made." 



