INDEX TO VOLUME I. 



6 5 7 



. Tage. 



Sporangium of diatomacere, forma 

 tion of 451 



Synedra tabulata, Fig. 19. 



&quot; structure of . . . 438 

 Schizonema obtusum, Fig. 18. 



Stamp Act Island deposit, . . 503 



Staurastrum polymorphum, . . 505 



Soundings, how to collect . . 483 



Soluble glass, use of diatomaceas for 462 



Stauroneis, front view of . . . 437 

 &quot; acuta, F. V., Fig. 34. 

 &quot; S. V., Fig. 33. 

 structure of . . -435 



Septum of diatomaceae, . . . 437 



Stipes of diatomaceas, . . . 438 



Sub-plutonic deposits, to clean . 495 



Shell cleanings, how to collect . 482 



Terminal nodule of diatomaceae, . 434 



Triceratium, structure of . . . 432 



Wilkesii, . . .488 



&quot; Montereyii, Fig. i. 



&quot; punctatum, F. V., P ig. 2. 



S.V.,Fig.7. 



&quot; form of 



&quot; favus, Fig. 12, 



Test objects for microscopes, . 

 Terpsinoe musica, 



Tripoli, 42 



Typical cell of Schwann, 

 Tabellaria, .... 



Umbagog Lake deposit, . 

 Valves of diatomaceas, . 

 Zostera marina, diatomaceaa upon 



425 

 489 

 427 

 488 

 4, 462 

 445 

 457 



53 



425 



Dip, magnetic, lines of equal . 150, 152 

 &quot; &quot; 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, 



&quot; &quot; origin of 



Dodge, J. W. . 



mine, 

 Drift hills, 

 Drouth, 



641 

 623, 643 



79 r 

 16 



. 214 

 123, 324, 330 



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



Eagle s Nest, ..... 625 



Edwards, A. M 48 



&quot; 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, ...... 



Errol, scenery of 



Expedition, Mt. Washington, history 

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



Explorations in White Mountains, 



29, 32, 36 

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



Fabyan house, .... 79 



&quot; path, . . . . 73, So 



&quot; turnpike, .... 80 



Fairbanks, H. . . . -52 



Favosites, ..... 48 



Featherstonhaugh, G. W. . . 524 



Felsites, ...... 56 



Fertilizers, 547 



use of . . . . 554 

 &quot; 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 



&quot; alpine .... 392, 568 



Flume at Dixville, .... 642 



&quot; house 80 



Flumes, 593 



Forest, extent of . . . 575 



&quot; removal and restoration of 



577, 58r 

 influence of, on rain-fall, 123, 321 



Fossils discovered, 

 Franconia breccia, 

 Frost action, . 

 &quot; work, 

 &quot; feathers, 



522 



48 

 526 



597 

 130 



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 

 &quot; of first year, . . 17 



&quot; of second year, . 26 



&quot; of the White Moun 



tains . 33, 67 

 of southern N. H., 50 



of gold field, 



22, 46 



