204 INDEX. 



PAGE 



Blood disks of siren, . . . . . .. 95 



Bone, . , . . . . . . ' . --ijdr 



Basement membrane, ..... 104, 131 



Bat's hair, . . . . . . .114 



Branchial cartilage of tadpole, .... 135 



Blood in urine, ...... 169,181 



Bile in urine, ...... 182 



Brewster's mode of illuminating objects, . . . 199 



C. 



Causes of error in observation, . . . . . , 15 



Coal beds, from vegetation, . . . . .14 



Coddington lens, ...... 29 



Compound microscope, . . . . . .31 



defects of the common, . . 33 



improvements in the, . . .33 



mechanical conveniences necessary to the, 35 

 forms of the, . . . .36 



most celebrated makers of the, . 36, 38 



Smith and Beck's, . . .36 



efforts to reduce the price of the, . 38 



Condenser, . . . . . . 41, 53 



for oblique illumination, ... 42 



Condensing (or bull's eye) lens, . . . . 44, 52 



Camera lucida, . . .' . . 37, 47 



Compressorium, ....... 50 



Cook's preserving fluid, . . - r ,- ; . "" ~ ' 56 



Cooper's preserving fluid, ^;. 56 



Cells for mounting, ...... .,.>-. 59 



Cements, ........ 60 



Canada balsam cement, ..... 61 



Charring vegetable matters, . . . . .61 



Carbonate of lime, ...... 67 



Crystallization of salts, ...... 67 



water, ..... 68 



Cuticles, ...... ,..;. ,; . 69 



Cellular tissues, , . 70 



