INDEX. 



ACALEPH.E, 24. 

 Acarina, 326. 

 Acarus of beetle, 334. 



of cloth moth, 334. 

 farinse, 332. 



of fly, 334. 



of fowl, 333. 



of rat, 328. 



sacchari, 331. 



scabiei, 329. 



Achetina, 321. 

 Achnanthes, 159. 

 Achromatic illuminator, 60. 



object-glasses, 34. 



Acinetinaea, 147. 

 Actiniaegemmacea, 218. 

 maculata, 222. 



mesembryanthemum, 220. 



rubra, 220. 



Tuedise, 222. 



Actinocyclus, 161. 



Adams'* microscope, 8. 



Alcyonella, 181. 



Alcyonidae, 215. 



Alcyonium, digitatum of, 87. 



Algse, 406. 



Air-pump for removing air-bubbles, 79. 



Amseba, 131. 



Amici's microscopes, 10. 



Anacharis alsinastrum, 435. 



Angle of aperture, 34. 



Anguinaria, 228. 



Animalcules, cilia of, 1 38. 



, collecting, 69. 



history of, 138. 



infusorial, 136. 



marine, 141. 



polygastric, 136. 



rotating, 167. 



Animal cell, 346. 



action of cells, 352. 



action of cilia, 355. 



articulata, 286. 



cell, history of, 346. 



cells, change of into tissues, 348. 



Animal cells, change of into intercellular 



substance, 352. 



connective tissue, 367. 



elementary tissue, 367. 



epithelium, 353. 



fibrous membrane, 368. 



membrane, 367. 



multiplication of cells, 348. 



structure, 343. 

 structure, mode of investigating, 



379. 



tissue consolidated, 372. 



Annelida, 274. 



Anthea, 222. 



Aquarium for fish and plants, 245. 



Arachnidse, 282. 



Arachnoidiscus, 162. 



Aristophanes, microscope known to, 2. 



Articulata, 270. 



Artists, designs for, 162. 



Astasisea, varieties of, 146. 



Asteroidse, 211. 



BAKER ox THE MICROSCOPE, 8. 



Balanidse, 280. 



Barnacle, 280. 



Bee's tongue, leg, Sec., 314. 



Beetles, description of, 315. 



Bennett, Dr., on investigating animal 



structure, 387. 

 Berg-mehl, 163. 



Binocularity, applied to microscope, 121. 

 Binocular microscope, Wenham's, 122. 

 Blackwell, Mr., on flies, 294. 

 Blood corpuscles, 360. 



crystallization of, 363. 



Blow-fly, 296. 

 Bone, birds', 383. 



cutting sections of, 386. 



fishes', 384. 



human, 379. 



reptiles 1 , 383. 



Bonnani's microscope, 7. 



Boys, Mr. Thomas, on mounting objects, 



80. 



