INDEX. 



PACK 



Achromatic object-glasses, their invention an epoch in histology, 18 

 description of, ... 34 



comparison of different makers, 38 



Animal tissues, to be examined when fresh, . . .17 



on procuring, . . . . 81 



Accessory instruments, . ..... 41 



Animalcules cage, ...... 37, 49 



Asphaltum cement, . . . ; . . 60 



Agate, ....... 67 



Algse, . 77 



Aphides, ....... 90 



Acari, . . . . . . . .90 



Anatomical preparations, ..... 94 



Areolar tissue, ....... 103 



Artificial star, as a test object, .... Ill 



Angle of aperture, explained, ..... 112 



Arm rests, ....... 120 



Albuminous urine, . . . . . 170, 183 



Alkaline salts in urine, . . . . . 173 



Advantage of polarized light in examination, . . . 193 



Apparatus to prevent evaporation, .... 201 



B. 



Bog iron ore, from infusoria, . . . . .14 



Borelli, his observations on pus, &c., . . . 15 



Blood corpuscles, . . . . . .95 



