1 146 



INDEX 



COL 



Collomia grandiflora, spiral fibres in 



seeds of, 693 

 Collozoa, 852 

 Colonial Acinetina, 784 

 Colonies, in Codosiga, 764 ; of Radiola- 



rians, 849 ; of Polyzoa, 924 

 Columel of Sphagnacece, 674 

 Comatula, 900, 901 ; nerves of, 1052 

 ' Comb-bearers,' 881. See Ctenophora 

 Commensalism, in lichens, 650 

 Compensating eye-pieces, 34, 273, 378 

 Composite, laticiferous tissue of, 695 

 Compound condenser, sub-stage, 134 



microscope, construction of, 39; in- 

 vention of, Govi on, 120 



Compression of light rays, 57 



Compressor, Rousselet's, 346 ; Davis's, 

 347 ; Beck's, 347 



Compressorium, 346 



' Concentric ' bundles, 710 



Conceptacles of Fucacece, 627 ; of Mar- 

 chantia, 666 



Conchifera, shell of, 919 



Concretionary spheroids, 1100 



Condensers, 190, 298-316 



Kellner eye-piece used as, 196 ; 

 Gillett's, 204, 300 ; Hartsoeker's, 298 ; 

 Bonaiinus's compound, 298, 299; 

 Powell and Lealand's, 301, 302, 310; 

 apochromatic, 802; Swift's, 302, 305; 

 immersion, 303, 805; Watson's, 308, 

 304; Beck's, 304, 305; Zeiss's, 305, 

 308, 309; Baker's, 306; Webster's, 

 308; Abbe's, 808, 309; fittings for, 

 312-314 ; Swift's, for use with polari- 

 scope, 314 



total aperture of, 307 



tabular list of, 315 



achromatic, 300, 304, 305, 306, 811 ; 

 Brewster on, 299 



chromatic, 308, 309, 311 



compound, 134 



cone of light with, 190 

 Conferva, 557 



Confervacece, 569, 570 ; binary division 

 of, 569 ; zoospores of, 570 ; resemblance 

 of Melosirece to, 608 



Conferva*, 945, 960 



Conical epithelium, 1044 



Conids, of Ascomycetes, 643 ; of Basidio- 

 mycetes, 647 



Conifera, 684 ; woody cells of, 697 



Coniferous wood fossilised, 705, 1083 



Conjugates, affinities of, 549 



Conjugate foci, 13 ; focus, 24 ; image, 24 



Conjugating cells, 540 



Conjugation, a sexual act, 537 



Conjugation of Mesocarpus, 549 ; of 

 Spirogyra, 549; of Ulothrix, 557; of 

 Hydrodictyon, 565 ; of Desmidiacece, 

 584 ; of diatoms, 599 ; of Phceosporece, 

 627 ; of Myxomycetes, 634 ; of Arcella, 

 746 ; (zygosis) of Gregarina, 751 ; of 

 Heteromita, 760 ; of Tetramitus, 761 ; 

 of Noctiluca, 769; of Glenodinium, 

 770; of Podophrya, 785; of Ciliata, 

 782 ; of VorticeU'a, 782 



COS 



Connective tissue, 1019 ; fibrous, 1038 - 

 corpuscles of, 1039, 1040 ; areolar, 1040- 

 Contact metamorphism, 1077 

 Continental correctional collar, 359 



microscopes, objections to, 162 



model, 254-261 ; criticism on, 259 

 Continuity of protoplasm, 538 ; in Flori- 



dea?, 630 

 Contractile vacuole in Volvox, 552 



- vesicle, of Actinophrys, 737 ; of 



Microgromia, 737; of Amoeba, 743; 



of Infusoria, function of, 754 ; in 



Flagellata, 764 ; of Paramecium, 776 ; 



of Ciliata, 776; of Stentor, 777; of 



Botifera, 789 

 Convergence of light, 18 

 Convergent light in petrology, 1070, 1078- 

 Conversion of relief in spectroscope, 92 

 Convolvulacece, laticiferous tissue of, 695 

 Convolvulus, pollen-grains, 721 

 Copepoda, 960 ; classification of, 965 note 

 Copeus cerberus, 791 

 Copper sulphate, crystallisation of, 1096 

 Coquilla-nut, 725 



section of, 692 



Coralline crag, microscopic constituents 



of, 1089 

 Corallines, 960 



conceptacles of, 632 ; ostiole of, 632 



(sertularids), 870 



Corals, section of hard and soft parts,. 

 510 



red, 877 ; stony, 878 ; mushroom, 878 

 Corella parallelogram ma, branchial sac 



of, 912 



Coreopsis tinctoria, seeds of, 724 

 Cork, 708 



Corky layer of bark, 708 

 Cormophytic type, 668 

 Cormorant, parasite of, 1010 

 Corneules of arthropod eyes, 983 

 Corn-grains, husk of, 725 

 Cornuspira, 801, 803 

 ' Corpuscle ' of gymnospenns, 685 

 Corpuscles, white, 1037; change of form 



of, 1038; of connective tissue, 1039,. 



1041 ; of blood, flow of, 1056 

 Corrected lenses, 382 

 Correction collar, 21, 30, 50, 274 ; English,. 



857 ; Continental, 359 

 Corroded crystals, 1071 

 Corrosive sublimate, as a fixative, 484 

 Corynactis Allmanni, thread-cell of, 879" 

 Coscinodiscece, characters of, 608 

 Coscinodiscus, 588, 620 



cyclosis in, 587 ; frustules of, 589, 590 ; 

 markings on frustule of, 591 ; areolae 

 of, 591 



asteromphalus, 591 ; for testing lenses,. 

 889 



oculus iridis, 609 



punctatus, fossil, with embryonal 

 form, 598 



Cosmarium, division of, 582; form of 

 cell, 585 



botrytis, zygospore of, 584 

 ! Cosmic dust, 1093 



