1156 



INDEX 



HET 



HYP 



Heteromita uncinata, life-history of, 760 



Heterostegina, 834 



Heurck (Van\ on markings of diatoms, 



593 



Hexarthra, 792 

 Hicks, on amoebiform phase of Volvox, 



556 ; on preparation of insect antennae, 



989 note ; on structure of halteres and 



elytra, 1000 

 Himantidium, 604 

 Hipparchia janira, eggs of, 1005 

 Hippopus, 613 

 Hippothoa, 909 

 Holland's triplet, 37 

 Hollis's liquid glue, 444 

 Hollyhock, pollen-grains of, 721, 722 

 Holothuria botellus, plates of, 895 



edulis, plates of, 895 



inhabilis, plates of, 895 



vagabunda, plates of, 895 

 Holothurice, diatoms in stomach of, 614, 



623 



Holothurioidea, skeleton of, 894 ; pharyn- 

 geal skeleton of, 895 note ; plates in j 

 skin of, 895 ; preparation of calcareous 

 plates, 896 ; abbreviated development 

 in, 900 note 



Holtenia Carpenteri, 861 



Homeocladia, 602 



Homogeneous, word first applied to 

 lenses, 30 



immersion, 364 ; Abbe's combination, 

 365 



immersion lenses of Powell and Lea- 

 land, 30 ; of Zeiss, 29 



objectives, value of, in study of monads, 

 762 



system, 28 



Homoptera, wings of, 998, 999 

 Hood of mosses, 671 



Hoofs, 1029, 1033 



sections of, mounting, 481 ; for polari- 

 scope, 481 



Hooke's adoption of field-lens to eye- 

 lens, 128, 376 



compound microscope, 128 

 Hooked monad, 760 



Hooker (J. D.), on diatoms of antarctic 



circle, 621 



Hooklets on wings of Hymenoptera, 999 

 Hoplothora, 1012 



maxillae of, 1010 



Hormogones of Oscillatoriacece, 547; of 

 Bivulariacece, 548 ; of Scytonemacece, 

 548 ; of Nostoc, 549 



Hormosina globulifera, 813. 815 



Carpenteri, 815 

 Hornblende, 1077 



corroded cr j stals of, 1072 ; pleochroism 

 in, 1078 



Hornet, wing of, 999 ; sting of, 1003 



Horns, 1029, 1033 



Horny substances, chemical treatment 



of, 517 



' Horse-tails,' 680. See Equisetacece 

 Hosts of parasitic plants, 532 

 House-fly. Sea Musca 



Hudson, on the functions of contractile 



vesicle of rotifers, 789 note 

 Hudson and Gosse, on classification of 



rotifers, 790 

 Human blood-corpuscles, 1034 



hair, 1031 



Husk of corn-grains, 725 



Huxley, on the ectosarc of Amoeba, 743 

 note ; on coccoliths, 747 ; on Bathybius, 

 747 ; on Collozoa, 853 note ; on struc- 

 ture of molluscan shells, 922 ; on pul- 

 villus of cockroach, 1000 note ; on agamic 

 reproduction of Aphis, 1006 



Huxley's simple dissecting microscope, 

 251, 252 



Huyghenian eye-piece and spherical 

 aberration, 42 



Hyacinth, raphides of, 696; cells of 

 pollen-chambers, 720 ; pollen-grains of, 

 722 



Hyaline shells of Foraminifera, 799 



Hyalinia cellaria, palate of, 931 



Hyalodiscus subtilis, 608 



Hyaloplasm, 537 



Hydra, collecting, 527 ; intracellular 

 digestion in, 863 ; thread-cells of, 864 ; 

 structure of, 864 ; reproduction of, 866 ; 

 gemmation of, 866 



fusca, 863, 865 



viridis, 863, 867 



vulgaris, 863 



' Hydra tuba ' of Chrysaora, 874, 876 

 Hydrachnidce, 1008 ;' mandible of, 1009; 



eyes of, 1011; reproductive organs 



of, 1012 ; characters of, 1013 

 Hydrangea, number of stomates in, 716 ; 



seeds of, 724 

 Hydrodictyon, 557, 566 



reticulatum, 565 

 Hydroida, classification of, 868 

 Hydroids, compound, 867 ; structure of, 



867 et seq. ; Medusae of, 868 ; planulae 

 of, 868, 871; habitats of, 871; ex- 

 amination of, 871 ; mounting, 871 ; 

 polariscope with, 872 ; preservation of, 

 872 



Hydrophilns, antennae of, 987, 988 



Hydrozoa, 863-877 



Hydrozoa and marine mites, 1013 



Hyla, nerves of, 1054 



Hymenium of Ascomycetes, 642 ; of Basi- 

 diomycetes, 647; of Hymenomycetes, 

 648 



Hymenomycetes, 647 ; pileus of, 648 ; 

 stipe of, 648 



Hymenoptera, 973; eyes of, 987; mouth- 

 parts of, 990 ; wings of, 998 ; sting of, 

 1002, 1003 ; ovipositor of, 1002, 1003 



Hyoscyamus, spiral cells of pollen- 

 chambers of, 720 ; seeds of, 724 



Hypericum, seeds of, 724 



Hyphae ot fungi, 633 



Hypnospore of Hydrodictyon, 565 



Hypnospores, meaning of, 541 note 



Hypoblast, 726 note 



Hypopial stage of Tyroglyphidce, 1013 



Hypopus, 1013 



