INDEX TO VOLUME I. 



655 



Crinoids, . 

 Crown monument, 

 Crystal cascade, 



Page. 



49 

 172, 218, 637 



631 



Crustacea, marine, in fresh water, . 568 



Cuba falls 631 



Culver hall, 57 



Cutler, M 64, 70 



Current from south-west, . .119 



Cyclones, course of . . . .121 



Dana, E. S 38-40 



&quot; J. D., 38; letter from, 40; 

 calls Eozoic rocks Ar 

 chaean, 

 Dartmouth college, . 



&quot; students as explorers, 



&quot; Scientific Association, 

 Davis bridle-path, . 

 Dawson, J. W. 

 Declination of needle, 



DlATOMACE/E, INDEX TO : 



153 



5&quot; 



20 



30 

 32, 36 

 . 4 8 



61, 80 

 . 510 

 164 



Achnanthes brevipes, Fig. 14, . 



&quot; longipes, 



Achnanthes, structure of 

 Achnanthidium, . 

 Actinoptychus, structure of 

 /Ecidium asterum, . 

 &quot; Dracontii, 

 &quot; grossulariae, 

 &quot; Violae, . 

 Amphitetras, form of 



&quot; structure of 



Arachnoidiscus, . . . . 

 Aulacodiscus Oregonensis, Fig. 28, 

 &quot; structure of 



Bacillaria paradoxa, 



Bemis lake deposit, 

 Berg-mehl, 

 Biddulphia aurita, . 



&quot; Baileyii, 



&quot; regina, . 



&quot; rhombus, F. V., 

 S.V., 



&quot; structure of . 

 Bow deposit, . 

 Bowkerville deposit, 

 Bristol deposit, 



in fresh water, . 

 mode of move 

 ment of 



Fig. 22. 

 Fig. 21. 



Campylodiscus, movement of . 

 Cell subdivision. 

 Central canal of diatomaceas, . 

 Central nodule of diatomaceae, 

 Closterium angustatum, . . 

 Cell-contents of diatomaceae, . 



438 

 453 

 430 

 SS 

 55 

 S5 

 55 

 425 



432 

 488 

 488 

 428 



441 



442 



442 

 502 

 461 



488 



53 

 503 

 53 



440 



445 

 434 

 434 

 5S 

 424 



Cell, typical, of Schwann, . 

 Cocconeis, ..... 



Cocconema, ..... 



&quot; cistula, conjugation of . 



Connecting membrane of cliatoma- 



cea2, ...... 



Coscinodiscus radiatus, Fig. 10. 



&quot; structure of . . 



&quot; subtilis, . . . 



Colletonema, ..... 

 Concord deposit, .... 

 Cosmarium Botrytis, . . . 

 Chalk pond, Newbury deposit, . 

 Cyclotella, . . . -433 

 Cingulum of diatomaceas, . . 

 Coscinodiscus, form of . . 



Page. 



445 

 453 

 453 

 454 



425 



430 

 489 

 453 

 503 



505 

 503 



&amp;gt;453 

 425 

 425 



Dutch rushes, diatomaceae upon . 488 

 Dust containing diatomaceae, how to 



collect, ..... 484 

 Diatoma vulgare. Fig. 20. 

 Diatom, typical form of a . 424, 425 

 Diatoma, . . . .421, 449 



&quot; to cut through . . .421 

 &quot; hyalinum ..... 488 

 Diatomaceas, 



Natural history of, 416-419 ; mixed 

 gatherings of, to separate into den 

 sities, 496; preserving and mount 

 ing, 496 ; little known to biologists, 

 420; origin of name, 421 ; where 

 found, 422 ; under ice, 423 ; struc 

 ture of, 423 ; cell-contents of, 424 ; 

 oil globules of, 425 ; feeding, 425 ; 

 valves of, 425 ; delicacy of mark 

 ings of, 426 ; movements of, 438 ; 

 mode of movement of, not known, 

 441; movements of, accelerated by 

 heat, 441 ; internal anatomy of, 

 445 ; how to collect, 482 ; mode of 

 growth of, 444 ; variation of, 448 ; 

 rapid multiplication of, 448 ; re 

 production of, 449 ; stipes or pedi 

 cle of, 449 ; modes of occurrence 

 of, 456 ; uses to man of, 456 ; in 

 moist earth, 456 ; in mosses on 

 house-tops, 456 ; in dust, 456 ; in 

 mud, 458 ; in stomachs of mollus- 

 ca, 458 ; in stomachs of sea ur 

 chins and sea cucumbers, 459; in 

 guano, 459 ; semi-fossil, 460 ; fos 

 sil, fresh-water, 460 ; used as food 

 by man, 461 ; fertilizing power of, 

 462 ; on algae, 458 ; lacustrine sed 

 imentary deposits of, 460 ; living, 

 color of, 457 ; used as food, 461 ; 

 deposits of, use as fertilizers, 462 ; 

 and geology, 463 ; in mud, 472 ; 

 directions for collecting, preserv 

 ing, and transporting, 478 ; fossil 

 deposits of, how to collect, 478 ; 

 recent gatherings of, how to col- 



