1148 



INDEX 



CYS 



Cyst, of Protococcns, 544, 551 ; of Proto- 

 "HIIJJCU, 728; of Clathntlina, 742; of 



gregarines, 751 ; of Dallingeria, 759 ; 



of Polift oma, 760 



Cystic Entozoa, relation to cestoids, 944 

 Cysticercus, relation to cestoids, 944 

 Cystids of Hymenonvycetes, 648 

 Cystocarp of Floridde, 632 ; of Bafra- 



chospermum, 574 

 Cyst op us candid us, 640 

 Cythere, 960, 961 



('//tl/i'i-iii/i, shells of, in chalk, 1087 

 Cytodes, contrasted with plastid, 727 

 Cytoplasm, 537 



D 



Dallinger and Drysdale's moist stage, 



341 ; tripod, 402 ; on life-history of 



monads, 756-7C3 ; on effects of tempe- 

 rature on monads, 761 

 Dallinger (W. H.), on S/i rii-n!<t, &c., as 



test objects, 600 note ; on nucleus of 



monads, 762 



Dallinger' s thermo-static stage, 344-346 

 DalUni/rria Dri/sdali, life-history and 



structure of, 758 ; nucleus of, 762 

 Dalyell I J. G.), on Hydra tuba, 874 

 Damans genioulatus, proventriculus of, 



1011 

 Dammar, as a preservative medium, 518 ; 



as a mounting medium, 521 

 Dandelion, laticiferous tissue of, 695 ; 



pollen-grains of, 721 

 DtijiJiiiia, eye of, 960; eggs of, 964; 



ephippial eggs of, 964 

 Diiphnia pulex, 962 

 Darwin (Charleston Cirripedia,967 

 Datura, seeds of, 724 

 Davis, on desiccation of Rut if era, 791 



note 

 Dawson (W.), on foraminiferal nature of 



EozoSn, 837 



' Day-fly.' See Ephemera. 

 'Dead-man's toes,' ?'.. See . I Ici/tnii n in 

 Dean's medium for mounting insects, 



973 

 De Bary, on fungi, etc., 634 note ; on 



potato-disease, 640 ; on alternation of 



generations in ferns, 680 

 Decalcification, 512 ; of echiiiodenns, 



512 ; of bones, 512 ; of teeth, 512 ; of 



Foraminifera, 513 ; of Eozoihi, 513 

 lii'i'iijiin/a, !)57 ; exoskeletoii of, '.His; 



macrurous, !t09 ; brachyurous, lit'i'.i 

 Decomposition, produced by llae/eria, 



661 



of rock-masses, 1076 

 l>eiining power. 425; tests for, 426 

 I ii'linilion of image, 382 

 I i' jem-ratkiii in T/ni/eafa, 911 

 I )cliydration, 4*7 

 I ii-llcbiirrc's microscope, 144 

 1 >rl/, In ni n i //, seeds of, 72 1 

 Ddliuili X, le^s of, 1010 

 - fullieillnrillll, 1014 



DIA 



De Monconys, his compound microscope, 



128 

 De ndritina, a varietal form of Peneroplis, 



803 



Dendrodus, teeth of, 1091 

 Dendrosoma, 784 

 Dentine, 1019, 1023-1026 



- resemblance of cuticle of crabs to, 

 969 ; in placoid scales, 1028 



Deparia, indusium of, 675 



- prolifera, 676 



Depth of focus, 83, 89 ; of vision, 88, 89, 



90 ; perception of, 94, 95 

 Dermal skeleton of Verfebnifa, 10'26 

 DermaJeicJii, 1008, 1014 

 Derma IIIJSSHS, 1012 



- larva of, 1009 

 Denuestes, hair of larva, 980 

 Descartes' simple microscope with reflec- 

 tion, 126 



Desiccation of rotifers, 791 



Desiderata in a microscope, 261-263 



Desilicification, 513 



DESMJDIACE/E, 549, 579-587; connection 

 with Pcdiaatrece, 566; sutnral line of, 

 580 ; cellulose envelope, 580 ; mucila- 

 ginous sheath, 580 ; primordial utricle, 

 580 ; endochroire, 580 ; movements of, 

 580 ; cyclosis in, 581 ; binary division of, 

 582; sexual reproduction, 584 ; classi- 

 fication of, 585 ; habitat of, 586 ; mode 

 of collecting, 586 



- Hiintzsch's glycerin method of pre- 

 serving, 520 



Desmidiece, 945 



conjugation of, 584 ; zygospore of, 584 



l>< uniiili/iDi, binary division, 582; fila- 

 ments of, 583 



Desmids. See DesmidiacecB 



Deutovium of Acarina, 1008 



Deutzia scabra, stellate hairs of, 714 ; 

 epiderm of, 715 



Development of Hydra, 866, 867 ; of hy- 

 droids, 868 ; of embryo in Gastropoda, 

 919 ; of molluscs, 933 ; of Annelida, 

 949 ; of Tomopteris, 953 ; of insects, 

 1007 



Deviation, 9 



' Diamond Beetle,' it7"> 



Dianthus, seed of, 723 



caryophylltBUs, parenchyme of, (588 



Diaphragm, 261, 297, 306, SO.s, 310, 312, 

 313, 314 



with two openings for double illumina- 

 tion, lot 



- Zeiss's iris, 297; calotte, 297 ; in eye- 

 pieces, 376-379, 381; for use in test- 

 ing object-glasses, :'.*.">, :;sr, 



- in Tally's microscope, 149 

 Diatoma, 588 ; frustules of, 588, 605 



ntlatire, chains of, 605 

 DIATOM U-K.V., 549, 587-625 



- perforated membrane of, examined 

 with annular illumination, 419 ; mode 

 ot examination of, 419 ; mounting, 481 ; 

 silicious coat, refractive index of, 521 ; 

 stipes of, 588 ; beaded appearance, 592 ; 



