INDEX TO VOLUME I. 



657 



Sporangium of diatomacea2, forma- 

 tion of . 

 Synedra tabulata, Fig. 19. 



" structure of- 

 Schizonema obtusum, Fig. 18. 

 Stamp Act Island deposit, 

 Staurastrum polymorphum, 

 Soundings, how to collect 

 Soluble glass, use of diatomacece for 

 Stauroneis, front view of . 



" acuta, F. V., Fig. 34. 

 " S. V., Fig. 33. 



" structure of . 

 Septum of diatomaceae, . 

 Stipes of diatomaceae, 

 Sub-plutonic deposits, to clean 

 Shell cleanings, how to collect 



Terminal nodule of diatomaceae, 

 Triceratium, structure of . 



Wilkesii, 



Montereyii, Fig. i. 



punctatum, F. V., Fig. 2. 



" S.V.,Fig. 7 . 



form of ... 



favus, Fig. 12, 



Test objects for microscopes, . 

 Terpsince musica, .... 

 Tripoli, .... 

 Typical cell of Schwann, 

 Tabellaria, 



Page. 

 451 

 438 



53 

 55 

 483 

 462 



437 



435 

 437 

 438 

 495 

 482 



434 

 432 

 488 



425 

 489 

 427 



Umbagog Lake deposit, . 

 Valves of diatomaceae, . 



424, 462 



445 



457 



503 



425 



Zostera marina, diatomaceae upon . 488 



Dip, magnetic, lines of equal . 150, 152 

 " " daily and annual va- 



riations of . . 157 

 Districts, middle and northern, 381 ; 

 maritime, 381, 564; Alleghanian, 

 332, 382, 560, 574 ; Canadian, 332, 

 382, 560, 574; Alpine, 336, 392, 571 

 Dixville Notch, . . . .641 

 " " origin of . . 623, 643 



Dodge, J. W 79 



" mine, 16 



Drift hills, 214 



Drouth, . . . .123, 324, 330 

 Dwight, President . 72, 75, 178, 203, 245 



Eagle's Nest, 625 



Edwards, A. M 48 



" on diatomaceae, . 416 



Egleston, T 48 



Elevations. See altitudes. 

 Elevation, theory of . . .518 



Elm, 386 ; large ones, . . . 580 

 VOL. I. 85 



. Page. 



Engine, mountain .... 82 



Eozoic, 507; divided, 508; life in, 



508; signification of name, . .511 

 Eozoon, . . . . . .510 



Erosion, agents of, 591 ; amount of, 

 592 ; in rainless and rainy coun- 

 tries, 59 2 



Errol, scenery of . . . 643 



Expedition, Mt. Washington, history 



of, 96 ; narrative of, 102 ; home of, 103 

 Explorations in White Mountains, 



29, 32, 36 

 Exeter siemte, . . 27, 55, 57, 530 



Fabyan house, .... 79 



" Path 73, 80 



" turnpike, .... 80 

 Fairbanks, H. .... 52 



Favosites, 43 



Featherstonhaugh, G. W. . . 524 

 Felsites, ...... 56 



Fertilizers, 547 



" use of . . . . 554 

 " composition of . -555 



Field, Darby 59 



Fires in forests, . . 75, 125, 581 

 First visit to Mt. Washington, . 59 

 First dry land, . . . .511 



Flint, William F., on distribution of 



plants, 381 



Flora of New Hampshire, . . 382 



" alpine .... 392, 568 



Flume at Dixville, .... 642 



" house 80 



Flumes, 593 



Forest, extent of .... 575 

 " removal and restoration of 



577, 581 



influence of, on rain-fall, 123, 321 

 Fossils discovered, .... 48 

 Franconia breccia, . . 515, 522, 526 



Frost action 597 



" work, ..... 130 

 " feathers, .... 131 



Geodetic connection survey, . . 241 

 Geographic position affects amount 

 of rain-fall, 314 ; its relation to sce- 

 nery, 590 ; positions determined 

 by C. S., 238; by geological sur- 

 vey, 239; by geodetic connection 



survey, 241 



Geological map, by Dr. Jackson, . 9 

 of first year, . . 17 

 of second year, . 26 

 of the White Moun- 

 tains . 33, 67 

 of southern N. H., 50 

 of gold field, 22, 46 



