INDEX. 



717 



Contractile vesicle of Volvox,260; of Amoe- 

 ba, 405 ; of Actinophrys,407 ; of Infuso- 

 ria, 417, 418. 



Convex lenses, refraction by, 65-69 ; for- 

 mation of images by, 69. 



Coquilla nut, cells of, 368. 



Coral, red, 473 ; stony, 473, 474. 



Corallines (zoophytic), 38,49 ; true, 331,332. 



Cordylophora, 461, 462. 



Cork, 380. 



Corpuscles of Blood, 598-601. 



Corti, Abbe, on rotation in Chara, 47. 



Corynida, 461, 462. 



Coscinoditcus, 289, 290. 



Cosmarium, self-division of, 269; conjuga- 

 tion of, 274. 



Crab, shell-structure of, 550, 551 ; meta- 

 morphoses of, 551, 552. 



Cricket, gastric teeth of, 569 ; sounds pro- 

 duced by, 575. 



Crinoidea, skeleton of, 482. 



Crusta petrosa of Teeth, 589-591. 



CRUSTACEA, 539 ; lower forms of, 539-541; 

 entomostracous, 541-546; suctorial, 547, 

 548; cirrhiped, 548-550; decapod, shell 

 of, 550, 551; metamorphoses of, 551, 552. 



CRYPTOGAMIA, microscopic study of, 43-46 ; 

 movements of, 44 ; sexuality of, 45, 46, 

 359. (See Protophyta, Alga, Mosses, &c.) 



Crystals of snow, 644. 



Crystallization, Microscopic, 645. 



Ctenoid scales of Fish, 594. 



Curculionidcs, 556-559. 



Cutaneous eruptions, 668. 



Cuticle of Equisetacese, 358; of Flowering 

 Plants, 388-391. 



Cuttle-fish, shell of, 516, 517. 



Cycloid scales of Fish, 592. 



Cyclops, 542, 543 ; fertility of, 546. 



Cydippe, 470, 471. 



Cypris, 541, 542. 



Cyprcea, structure of shell of, 515. 



Cystic Entozoa, 530. 



Cysticercus, 530. 



Cythere, 542. 



Dalrymple, Mr., on Notommata, 429. 



Dalyell, Sir J. G., on development of Me- 

 dusae, 468-470. 



Daphnia, 544 ; ephippial eggs of, 546, 547. 



Darwin, Mr., on Pampean formation, 639, 

 640. 



Deane's Gelatine, 232-234. . 



Decapod Crustacea, shell of, 550, 551 ; me- 

 tamorphoses of, 551, 552. 



Defining power of object-glasses, 187, 188. 



Demodexfolliculorum, 582. 



Dentine of Teeth, 588, 589. 



Dendrodus, teeth of, 641. 



Dermestes, hair of, 195, 559. 



Desmidiacece, general structure of, 265-267 ; 

 movement of fluid in, 267, 268 ; duplica- 

 tive subdivision of, 268-270; formation of 

 gonidia by, 270-273 ; organization and 

 multiplication of varieties in, 273,274; 

 conjugation of, 274-276; collection of, 

 276, 277. 



Deutzia, stellate hairs of, 390, 391. 



Development, Von Baer's law of, 52. 



Animal, application of Mi- 

 croscope to, 50-57. 



Development, Vegetable, application of Mi- 

 croscope to, 42-47, 



Diamond-beetle, 556-560 ; foot of, 576. 



Diaphragm-Plate, 130, 131. 



Diatoma, 298. 



Diatomacea, vegetable nature of, 277; co- 

 hesion of frustules of, 278, 279 ; siliceous 

 envelope of, 277-280 ; markings of, 280- 

 283 ; self-division of, 283, 284 ; gonidia 

 of, 284; conjugation of, 284-286; limits 

 of species of, 286, 287, 301 ; movements 

 of, 287, 288 ; classification of, 288-301 ; 

 general habits of, 301-303 ; fossilized de- 

 posits of, 303, 304, 629-633 ; collection of, 

 304-306 ; mounting of, 306, 307 ; their 

 value as tests, 195-199. 



Dicotyledonous Stems, structure of, 378- 

 386. 



Dictyochalix, 453. 



Didymoprium, self-division of, 269 ; conju- 

 gation of, 274, 275. 



Diffraction of Light, errors arising from, 

 181, 182. 



Dipping-Tubes, 152. 



Dissecting Microscope, Quekett's, 94-96. 

 Smith and Beck's, 

 103-105. 



Dissection, microscopic, 201-203. 



Distoma, 532, 533. 



Dog, foot of, epidermis of, 606. 



Doris, spicular skeleton of, 516. 



Dotted Ducts, 374. 



Doublet, microscopic, 79. 



Draw-Tube, 118, 119. 



Dropsical fluids, examination of, 699. 



Dry-mounting of objects, 221-225. 



Ducts of Plants, 374,375. 



Dujardin, M., on Rotifera, 432-435. 



Duplicative subdivision, of Palmoglaea, 252; 

 of Protococcus, 255 ; of Desmidiaceas, 

 268-270; of Diatomaceae, 283, 284; of 

 Confervaceae, 318,319; of Protozoa, 407- 

 409 ; of Infusoria, 418. 



Dusideia, skeleton of, 455. 



Dytiscus, foot of, 577, 578. 



Eagle Ray, teeth of, 589. 



Echinida, shell of, 477, 478; ambulacral 

 disks of, 479 ; spines of, 479, 480 ; pedi- 

 cellariae of, 481, 482 ; teeth of, 482 ; me- 

 tamorphosis of, 488-491. 



ECHINODERMATA, skeleton of, 477-486; 

 metamorphoses of, 486-491. 



Educational Microscopes, 93-97, 104, note. 



Educational Value of Microscope, 57-64. 



Eel, scales of, 591, 592. 



Eels, of Paste and Vinegar, 531. 



Eggs of Insects, 579,580. 



Egg-shell, fibrous structure of, 602. 



Ehrenberg, Prof., his researches on Ani- 

 malcules, 47-49, 411-424, 428-435; on 

 Polycystina, 449-452. 



Elaters of Marchantia, 349. 



Elementary Tissues : see Tissues. 



Elytra, of Beetles, 575. 



Embryo, vegetable, development of, 400. 



Enamel of Teeth, 589-591. 



Encrinites, 482. 



Encysting process of Infusoria, 419-422. 



Endochrome of vegetable cell, 249. 



