INDEX TO VOLUME I. 



657 



Sporangium of diatomaceas, forma- 

 tion of . 

 Syncdra tabulata, Fig. 19. 



" structure of 

 Schizonema obtusum, Fig. 18. 

 Stamp Act Island deposit, 

 Staurastrum polymorphum, 

 Soundings, how to collect 



Soluble glass, use of diatomaceas for 



Fig. 

 Fig. 



34- 

 33- 



Stauroneis, front view of 

 acuta, F. V., 

 " S. V., 

 " structure of 



Septum of diatomaceas, . 

 Stipes of diatomaceas, 

 Sub-plutonic deposits, to clean 

 Shell cleanings, how to collect 



Terminal nodule of diatomaceas, 

 Triceratium, structure of . 

 Wilkesii, 



" Montereyii, Fig. 1. 



" punctatum, F. V., Fig 



S.V.,Fig. 



" form of 



" favus, Fig. 12, 



Test objects for microscopes, . 

 Terpsinoe musica, . 

 Tripoli, . 



Typical cell of Schwann, 

 Tabellaria, 



Umbagog Lake deposit, 



Valves of diatomaceas, 



Page. 



451 

 438 



503 

 55 

 483 

 462 



437 



435 

 437 

 438 



495 

 482 



434 

 432 

 488 



7- 



425 



489 



427 

 . 488 



24, 462 



445 



457 



503 



425 



Page. 

 82 



Zostera marina, diatomaceas upon . 488 



Dip, magnetic, lines of equal . 150, 152 

 " " daily and annual va- 



riations of . 

 Districts, middle and northern, 381 ; 

 maritime, 381, 564; Alleghanian, 

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

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

 Dixville Notch, 



623, 643 



79 

 . 16 



. 214 



123, 324, 330 



Dodge, J. W. 

 " mine, 

 Drift hills, 

 Drouth, . 



origin of 



157 



57i 

 641 



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



Engine, mountain .... 



Eozoic, 507; divided, 508; life in, 

 508 ; signification of name, . 



Eozoon, ...... 



Erosion, agents of, 591 ; amount of, 

 592 ; in rainless and rainy coun- 

 tries, ...... 



Errol, scenery of 



Expedition, Mt. Washington, history 

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



Explorations in White Mountains, 



29, 32, 36 

 Exeter sienite, . . 27, 55, 57, 530 



5ii 

 510 



592 

 643 



!03 



First visit to Mt. Washington, 59 



First dry land, . . . . 511 

 Flint, William F., on distribution of 



plants, 3S1 



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, 

 Frost action, . 

 ' ' work, 



feathers, 



515, 522, 526 



597 



130 

 . 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, &7 



" of southern N. H., 50 



" of gold field, 22, 46 



