INDEX. 



ABERBATION, chromatic, 32. 

 of lenses, 63. 



how corrected, 63. 



spherical, 31. 



Abbe, Professor, on aperture, 75. 



binocular eye-piece, 11 i>. 



Absorption bands of blood, 131. 

 AcalephsB, 491. 

 Acarina, 632. 

 Acarus beetle, 455. 



cloth moth, 641. 



. domesticus, 637. 



of dog, 634. 



farinse, 639. 



of fly, 641. 



of fowl, 640. 



of rat, 634. 



sacchari, 638. 



scabiei, 635. 



of swallow, 639. 



Achetina, 627. 



Achnanthes Longipes, 420. 



Achorion, 296. 



Achromatic condenser, the, 176. 



Gillett's, 177. 



Ross's improved, 178. 



Beck's, 179. 



Swift's, 181. 



Hyde's, 184. 



object-glasses, SO. 



Acineta-f orm infusoria, 401. 



vorticella, 447. 



Acineta tuberusa, 41T, 449. 

 Actinia actinozoa, 465. 



bellis, 484. 



rubra, 483. 



Actiniforum zoophytes, 485. 

 Actinophrys sol, 374. 

 Actiiiotrocha, 578. 

 Actinozoa, 485. 

 Adams' microscope, 10. 

 Adipose tissue, 693. 

 Adulteration of food, 345. 

 /Ecidium, 293. 

 Pastes, 451. 

 Agates, 399. 



Alcyonella stignorum, 526. 

 Alcyonidse, 489, 524. 

 Alcyonium digitatum, 489. 



polypidoms, preparation of, 509. 



Alder, section of, 334. 

 Algse, development of, 269. 

 Alkaloids, sublimation of, 731. 

 Amici's microscopes, 12. 

 .- prisms, 187. 

 Aniphistome conicum, 565. 

 Amphitetras, 416. 

 Amoeba, 373. 



Amreboid stat I of volvox, 277. 

 Anacharis alsinastrum, 321. 

 Analysis, spectrum, 735. 

 Angle of aperture, 69. 



measurement of, 75. 



Anguillulae, 571. 

 Anguinaria spatulata, 520. 

 Animalcule, Sun, 374. 

 Animalcules, 402. 



collecting bottle, 193. 



history of, 403. 



infusorial, 414. 



troughs and cells, 195. 



Animal cell, 659. 



action of cilia in, 671. 



colls, change into tissues, 665. 



cellular membrane, 692. 



connective tissue, 662. 



elementary substance, 659. 



epithelium, 668. 



fibrous tissue, 694. 



kingdom, division of, 366. 



life, 655. 



structure, 661. 



structure, mode of invest* 



gating, 724. 



tissues, classified, 692. 



tissue consolidated, 702. 



tissues, staining, 225. 



Annelida, 575. 

 Annulosa, 559. 

 Anobium, 633. 

 Antennae of insects, 607. 

 Anthony's, Dr., diaphragm, 169. 

 Aperture of the object-glass, 69. 



numerical, 73. 



Aphides, 613. 



Aphrophora bifasciata, 615. 



Aplanatic doublet lens, 



Aplysia, 529. 



Apparatus for mounting, 210. 



Aquatic box, 194. 



Arachnida, 631, 644. 



Arachnoidiscus, 432. 



Arcella acuminata, 372. 



Archer on amoeboid bodies, 277. 



Arenicola, 576. [?. 



Aristophanes, microscope known to* 



Artemiae, 557. 



Articulata, 579. 



Asci of lichens, 305. 



Aspergillus, 301. 



Astasia, 412. 



Asteroidea, 495. 



Atlantic soundings, 382. 



Atropus, 623. 



BACC-ILLARIA paradoxa, 269. 

 C 2 



