115: 



INDEX 



FES 



Festuca praten&is, paleoe of, 715 

 Fibres and cells of Vertebrates, 1018, 



1019 



Fibro-cartilage, 1019, 1046 

 Fibro-vascular bundles, 697, 708, 710 



of ferns, 674 ; in the ' veins ' of leaves, 

 697 ; of Exogens, 697, 698 ; of Phane- 

 rogams, 700 



Fibrous tissues of Vertebrates, 1019 



- tissue, 1038 ; white, 1039, 1040 ; yellow, 

 1040 



Field of eye-pieces, 379 



Field-glass, 40 



Field-lens, 376 ; applied to eye-lens by 

 de Moiiconys, 128, 376 ; by Hooke, 128, 

 376 



FILICES, 674-680 ; stem, structure of, 

 674 ; fructification of, 675 ; prothallium 

 of, 677 ; antherids of, 677 ; archegones 

 of, 677 ; development of, 679 ; apospory 

 in, 680 ; apogamy in, 680 ; alternation 

 of generations in, 680 



' Filiferous capsules.' See Thread-cells 



Finder, 295 ; Maltwood's, 296 



Fine adjustment, 162-175 



- applied to the stage by Powell, 

 155 ; by moving the whole body, 162 ; 

 by simply moving the nose-piece, 162, 

 173 ; continental, 162-164 ; Campbell's 

 differential screw, 164 ; Zeiss's, 166 ; 

 Reichert's, 171; Watson's lever, 172; 

 Swift's vertical side-lever, 173 ; 

 Powell's, 174 



Fire-fly, antennae of, 987 



' Fire-fly,' 984, 988. See Laipi/riii 



Fish, circulation in tail of, 10.37 ; on 

 yolk-sac, 1057 



' Fish-louse,' 966 



Fish-scales, concretions in, 1101 



Fishes, lacunae in bone of, 1022 ; dentine 

 of, 1023 ; cement of teeth in, 1026 ; 

 plates in skin of, 1026 ; red blood- 

 corpuscles of, 1034, 1035 ; pigment- 

 cells of, 1043 ; muscle fibre of, 1049 ; 

 gills of, 1063 



Fission in Lielrr/.'/irh nin, 733; of 

 Monas, 756; of Minionii/ii, 704 ; of 

 Codosiga, 764 ; of plaiiarians, 947 



Fititiijit'iines, wings of, 999 



Fixation, 484-487 



Fixing agents : alcohol, 484 ; corrosive 

 sublimate, 484 ; osmic acid, 485 ; picric 

 acid, 485 



Flabella of Lir/itn/ilion/, 605 



Flagella, 532; of Bacteria, 652, 658, 659 



Fl(i</,'ll,itf,, 755-771 



- experiments 011, 761 ; nucleus in, 762; 

 karyokinesis in, 763; colonial t'nrins, 

 764 



collared, resembling cells of sponge*, 

 855 



Flagellate chambers of sponges, 856, 

 857 



Fhrjelll i .\ ..rli/lll'll, 766 tllitr 



Flat bottle for collecting, 527 



Flatness of Held, 425 



Flea, presumed auditory organ of, 422; 



FOR 



hairs on pygidiuni of, as a test, 421 



mounting medium for, 973 

 1 Flesh,' 1048 

 Flint, derivation of, 622 



- glass, refractive index of, 5 ; disper- 

 sive power of, 10 ; composition of, 32 



- implements found with Orbitolincp, 

 824 



Flints, preparation of, 1089 



Floral envelope, 718 



Floridea, 630-632 ; affinities of, 630 



FlosculariadcB, 791 



Floscules in confinement, 528 



' Flowering fern,' sporanges of, 676 



' Flowering plants,' 684. See PHANEBO- 



GAMIA 



Flowers, 718-723 ; Iiiman's method of 

 prepaiation, 719 



' Flowers of tan,' 634 



Fluid inclusions in crystals, 1074 



' Fluke,' 945 



Fluorite lenses for apochromatic objec- 

 tive, 35, 366 



Fluatra, mode of growth in, 904 ; gem- 

 mation in, 906 ; number of polypides, 

 908 ; polyzoaries of, 909 ; extensions of 

 perivisceral cavity in, 927 



Flustrella concentrica, 847 



Fly, vai'ious instructive organs to be ob- 

 tained from, 972 ; eye of, facets in, 

 983 ; proboscis of, 989 ; circulation in 

 wing of, 994 ; spiracle of, 996 ; areolae 

 on wings of, 998 ; foot of, 1000 



Focal alteration and form of objects, 421 



- depth, 38 



distances, by feeling, 177 



- length of a plano-convex lens, 15 

 Focke on Navicidu and Sitrirella, 602 



note 



Focus, virtual conjugate, 14, 25 ; princi- 

 pal, 16 ; mean, 17 ; virtual, 22 ; conju- 

 gate, 24 ; depth of, 83, 89 



of lenses, 13, 21, 22 ; chromatic, 16 

 Focussing arrangements, 159-175 

 Fontinal/is antipyretica, 671 



Food of Hydra, 685 

 Foraminifera, 733, 795-846 



- study of, by means of Beck's disc- 

 holder, 339 ; examination of, 423 ; 

 wooden slides for mounting, 450 ; 

 method for sectionising, 508 note ; de- 

 calcificatioii of, 513 ; structure of, 795 ; 

 chamberlets in, 798, 803, 804, 806 ; 

 cyclical mode of growth in, 798 ; plans 

 of growth, 798, 804 ; porcellanous 

 shells, 79!i ; vitreous shells, 799; tubu- 

 latioii of shell in, 799, 800 ; rotaline 

 type, 800; nunmiuline type, 800; in- 

 termediate skeleton of, 801 ; canal sys- 

 tem of, 801 ; Porcelhniea, 801 ; fos- 

 silised forms of, 801, 804, 812, 824, 837; 

 dimorphism in, 802 ; secondary septa 

 in, 803; Arriiarea, 810; sandy iso- 

 mov|ilis, 814; nodosarine type, 815; 

 I'i/ri'd, 819; internal casts, 823, 827 

 nti'\ nummuline series, 826; alar 

 prolongations, ,s;ui, ,s:'.l ; interseptal 



