INDEX 



1153 



FOR 



canals, 830 ; marginal cord in, 830, 834 ; 

 collecting, 843 ; method of separating 

 from sand .etc., 844 ; mounting, 845 ; 

 tubuli of, compared with those of den- 

 tine, 1020 ; in mud of Levant, 1085 ; 

 in rocks, 1085 ; internal casts of, 1090 



Forbes, on reproduction of Sertulariidn, 

 870 



Forceps, 351 



slide, 453 



- stage, 339 



For fie ula, antennee of, 988 

 Forficulid(E, wings of, 999 

 Form of objects and focal alteration, 



421 



Formation of microscopic images, 43 

 ' Formed material,' 1018 ; of fibrous 



tissue, 1019 ; of dentine, 1020 

 Fossil coniferous wood, 705, 1083 



- crinoids, 892 ; echinids, 892 



- Cijpnihr, 960 



- Fomii/inifcra, 801, 824-826 



- Lituolce, 816 



- Racbiolaria, 846, 854 note 



Saccammina, 812 



sponges, 1089 



- wood, 705, 706 



Fossilised Foraminifera (EozoGri), 837 



wood, sections of, 712 

 Fragilaria, 605 



Fragilariees, characters of, 605 

 Fragmentation of nucleus, 538 

 Fraunhofer's law of diffraction, 57 



achromatic doublet, 148 



- lines, 323-326 

 Fredericella, collecting, 528 

 Free-cell formation, 535, 719 



in embryo-sac, 534, 536 

 Freezing apparatus for Thoma's (Jung's) 

 microtome, 407 



microtome, Hayes's, 472 ; Cathcart's, 

 474 



imbedding by, 505 



Fresnel, on Selligue and Adams's micro- 

 scope, 148 ; on. range of magnification, 

 149 



Freyatia heteropus, legs of. 1010 



Fripp's method of testing object-glasses, 

 386 



Frog, blood- corpuscles of, 1034, 1035; 

 muscle fibre of, 1049 ; papillae on tongue 

 of, 1053 ; circulation in mesentery of, 

 1056 ; circulation in tongue of, 1056 ; 

 lung of, 1063 



Frog's bladder, histology of, as seen with 

 apochromatic, 372 



foot, epithelium of web of, 1044 ; cir- 

 culation in web of, 1055 



Frond of Phceospcrea, 626 

 Fructification, goiiidial, 541 ; sexual, 541 

 - of thallophytes, 540 ; of Ascomycetes, 



642 ; of lichens, 649 ; of mosses, 670 ; 



of ferns, 675; of Equisetctceee, 680 

 Frustules of Diatomacece, 588; shapes 



of, 588, 589 ; structure of, 589, 590 



note ; girdle, 589 ; ostioles in, 590 ; 



markings on, 591 ; character of, as basis 



GEL 



of classification, 602 ; of Coscinodiscus, 



609 



Fncacea, 627 ; conceptacles of, 627 

 Fuchsia, pollen-grains of, 722 

 Fucits, 626 



Fucus platycarpits, 627, 628 

 - vesiculosus, 629 

 Fulgoridie, wings of, 999 

 FuiKiria hygrometrica, 669 



sporange of, 671 

 FUNGI, 540, 633-664 



preparation of, 514 ; zymotic action of, 

 532 ; alternation of generations in 

 classification of, 634 ; parasitic on in- 

 sects, 642 



Futigia, lamellae of, 878 



Fungiform papillae, 1053 



Fungus-cellulose, 633 



Fusion in DaUiiii/i'riu, 75!) 



Fuss's description of a microscope, 1 47 



Fusulina, 825, 826, 1090 



-Fs?/H-limestone, 825, 



G 

 Gabbro, 1095 



fluid inclusions in, 1074 

 Gad-fly, ovipositor of, 1004 



See Tabanus 

 Gaillonella procera, 621 



granulata, 621 

 - biseriata, 621 



Galileo, inventor of the compound micro- 

 scope, 120-125 ; Viviani's life of, 120; 

 his invention of compound microscope, 

 Wodderborn on, 121 ; his occhialino, 

 121, 124 ; his occhiale, 122, 124 ; his 

 microscope, 127 



' Gall-flies,' ovipositor of, 1003 



Galley-worms. See Mijriopfula 



Gamasula, legs of, 1010; integument of, 

 1010; Malpighian vessel of, 1011; 

 heart of, 1011 ; tracheae of, 1011 ; cha- 

 racters of, 1012 ; reproductive organs 

 of, 1012 



<!<uini>>ux terribilis, mandibles of, 1009 



Ganglion-globules (cells), 1051 



Ganglionic cells, 1054 



Ganoid scales, 1028 



Garlic, raphides of, 696 



Garnets, 1077 



Gas bubbles in glass cavities, 1074 



Gaseous inclusions in crystals, 1075 



Gastropoda, palates of, mounting, 481 ; 

 palate of, 919 ; development of, 919 ; 

 shell structure of, 928 ; embryonic 

 development of, 934-940 ; organs of 

 hearing in, 941 



Gastrula, 726; -stage in Ccelenterata, 

 720 ; formation of, 726 note ; of zoo- 

 phytes, 862; of Gastropoda, 935; of 

 blowfly, 1007 



Gauss's optical investigations, 106-110; 

 his dioptric investigations, 106-110 ; his 

 system, practical example of, 111-1J6 



Gelatinous nerve-fibres, 1052 

 - in sympathetic, 1054 



4 E 



