786 



INDEX. 



Harvey, Dr., on movements of Os- 

 cillatoria, 323. 



Haversian Canals of bone, 694. 



Haustellate Mouth, 670, 671. 



Helianthoida, 550 — 554. 



Heliopelta, 299, 300. 



Helix, tongue of, 606, 607. 



Hemiptera, wings of, 679. 



Hemispherical Condenser, Reade's, 

 113, 114. 



Hendry, Mr., on Diatom -tests, 181 

 note, 182 note. 



Henfrey, Mr., on development of 

 Pollen-grains, 426, 427. 



Hepaticce, 365 — 369 ; see Marchantia. 



Herapath, Dr., on Pedicellarise of 

 Echinoderms, 560 note. 



Herapathite, 118, 119. 



Hepworth, Mr., on feet of Insects, 

 681. 



Heterostegina, 513, 514. 



Hicks, Dr., on Amoeboid state of 

 Volvox, 255 — 257 ; on Unicellular 

 Alga;, 320 ; on gonidia of Lichens, 

 324, 351 ; on Amoeboid production 

 in root-fibres of Mosses, 370 ; on 

 eyes of Insects, 662 ; on peculiar 

 organs of sense in Insects, 667, 

 671, 679. 



Highley, Mr., his Demonstrating 

 Microscope, 83 ; his Tow-Net, 

 238. 



Himantidium, 291. 



Hippocrepian Polyzoa, 581, 582. 



Hofmeister, Prof. , on Higher Cryp- 

 togamia, 382 note ; on Phanero- 

 gamia, 430 note. 



Hogg, Mr., on development of 

 Lymnseus, 614. 



Holland, Mr., his Triplet, 21. 



Holothurida, skeletons of, 566 — 568 ; 

 development of, 573 note. 



Hoofs, structure of, 708, 709. 



Hooker, Dr. Jos., on Antarctic Dia- 

 tomacese, 311. 



Hornet, wings of, 678. 



Horns, structure of, 708, 709. 



Houghton, Rev.W.,onGlochidium, 

 610. 



Huxley, Mr., on Rotifera, 475, 476; 

 on Thalassicolla, 449 ; on Sponges, 

 531 ; on Noctiluca, 550 ; on Shell 

 of Mollusca, 596 ; on Appendicu- 

 laria, 591 ; on Blood of Annelida, 

 628 ; on Shell of Crustacea, 649 

 note; on Reproduction of Aphides, 

 685. 



Huyghenian eye-piece, 25 — 27. 

 Hyaline Foraminifera, 486—489. 

 Hyalodiscus, 182 note, 297. 

 Hyalonema, 529. 



Hydatina, 476 ; reproduction of, 479. 



Hydra, structure of, 533 — 535 ; mul- 

 tiplication of, 535—537. 



Hydrodictyon, 329, 330. 



Hydrozoa, 537 — 543; production of 

 Medusae from, 543 — 547. 



Hyla, preparation of Nerves of, 732. 



Hymenoptera, proboscis of, 669 ; 

 wings of, 678 ; stings and ovi- 

 positors of, 682. 



Ice-plant, cuticle of, 419. 



Ichneumonidce, ovipositor of, 682. 



Illumination of Opaque objects, 

 161 — 164; of Transparent objects, 

 154—160. 



Illuminator, Black-ground, 114 — ■ 

 117, 160. 



Oblique, 112—114, 



158, 159. 



Parabolic, 115, 116. 



Reade' s Hemisphe- 

 rical, 113, 114. 



Side, 120—125. 



— Vertical, 125, 126. 

 Wenham's for Bino- 



cular, 114 note. 



White-Cloud, 117. 



Immersion-Lenses, 15, 16. 



Images, formation of, by convex 



y lenses, 9. 



Indicator, Quekett's, 98. 



Indusium of Ferns, 377. 



Infundibulate Polyzoa, 581. 



Infusorial Earths, 311—314. 



Infusoria, 452 — 46S ; forms of, 452 

 — 455 ; movements of, 455, 456 ; 

 internal structure of, 456, 457 ; 

 binary subdivision of, 457, 458 ; 

 encysting process of, 458 — 463 ; 

 sexual generation of, 463 — 465 ; 

 peculiar forms of, 466, 467. 



Injections of Blood-vessels, mode 

 of making, 739 — 745; mode of 

 mounting, 743. 



Inorganic substances as Micro- 

 scopic objects, 765^768. 



Insects, great numbers of objects 

 furnished by, 652, 653 ; micro- 

 scopic forms of, 653 ; antennae 

 of, 664 — 667 ; circulation of blood 

 in, 671, 672 ; eggs of, 684 ; eyes 

 of, 661—664; feet of, 680-682; 

 gastric teeth of, 671 ; hairs of, 

 659 ; integument of, 654 ; mouth 

 of, 667 — 671 ; organs of hearing 

 in, 667 ; organs of smell in, 682 ; 

 ovipositors of, 682, 683 ; scales 

 of, 655—659; spiracles of, 675, 

 676 ; stings of, 682 ; tracheae of, 

 673—677 ; wings of, 677—679. 



