LIST OF ILLUSTRATIONS. vii 
Part IV. 
Page. 
View of Moat Mountains and North Conway, ‘ : i : : . - 136 
ParT V. 
Figs. 1-6, Improvement in voltaic amalgamators for gold and silver,—Rae’s 
patent, . : : . r - . : ‘ g , 14-16 
Fig. 7, Map of the Warren mine, . ; . 3 a a ; ‘ 7 . 48 
Fig. 8, Section at the tin mine, Jackson, . . : : A : . . 67 
CHARTS IN THE ATLAS. 
Holland’s map of New Hampshire—/ac-szmle, reduced. 
Carrigain’s map of New Hampshire—/ac-simzle, half size. 
Two sheets of panoramic views taken from several of the White Mountain summits,— 
from free-hand sketches. 
One sheet of panoramic views from mountain summits, drawn by means of a camera. 
Six sheets, combining the topography, contour lines, and geology of New Hampshire, 
with portions of that of the adjoining territory on all sides. Fourteen geological 
sections are attached. The horizontal scale is two and a half miles to the inch; 
contour lines for every one hundred feet altitude, and for every fifty feet in parts 
of Coés and Cheshire counties. 
Five sheets illustrating the surface geology of New Hampshire. 
Geological map of the Ammonoosuc mining district. 
ILLUSTRATIONS NOT PRINTED WITH THE TEXT. 
HELIOTYPES FROM DRAWINGS. 
Part Ill. 
Page. 
Plate I, Maps showing the modified drift of Connecticut river, Nos. 1-4, . - 20 
Plate II, Maps showing the modified drift of Connecticut river, Nos. 5-8, . ay BA 
Plate III, Maps showing the modified drift of Connecticut river, Nos. 9-13, - 40 
Plate IV, Maps showing the modified drift of Pemigewasset and Merrimack river, 
Nos. 1-5, ‘ a: : 70 
Plate V, Maps showing the modified drift of Merrimack, Contoocook, and Ashue- 
lot rivers, . . . . : : . : ‘é : . - 96 
