328 
REGISTER OF PLATES, MAPS AND OTHER ILLUSTRATIONS. 
" 
Woop Cuts. 
Page. 
Plans of Long Lake and Mud Lake, in Vermont, - 
or me CO woe 
R. Hare’ s Apparatus for showing Specific Gravity, 122, 123, 124 
Sliding Rod Eudiometer,— - - 125 
ne Apparatus for finding Pageulic Gravity, 127 
Pt Chyometer,  - - 128 
sf Litrameter, - - - - 133 
fe Hydrostatic Blowpipe, - - 137 
. Self- regulating Resemyon, - oe — 140 
66 ig BA 142 
Hydro- -oxygen Blowpipe, - - - 143 
Figures of the Divining Rod, - 202, 203 
Sketches of Topography, S. side Ontario Valley, N. Y., 214, 215 
Section of a Valley, and Duaginery Section between Lake 
Erie and Lewiston, - - - 2Q16,21% 
Figures of Crystals of Hingibaidiilite, - - 252 
ee Davyne, - - - 257 
5%, ce Cavolinite and Christianite, 260, 262 
ss $s Biotina, - - - 265, 266 
Solar Halos, Aug. 1825, - a : : 326 
ff es Sept. 1816, - - - 328 . 
66 6c 3 66 a e Ht ne 333 
Diagram illustrating Crank Motion, - - 338 
Vor. XIL.—Prares. 
. Plans of Engines of Steamboat Babcock, by Patten, - 115 
. Paddle Fish or Spoonbill Statecon che the BSS Sipps 201 
Figures of Tortoises, - - 286, 287 
. Fluids i in the Cavities of Mineeale. 214 
. Geological Map of Lead Mines and Veins ae Hampshire Co., 
Mass., by Alanson Nash, - - 238 
. Dewey’ sFi igures of Carices. Tab. 1s fee 50-52, xi, 150,162; xii, 296 
Woop Cuts. 
R. Hare’s Piston Valve Volumeter,- - - - 36 
ce Simple Valve Volumeter, - - 38 
“3 Sliding Rod Gas Measure, - - - 39 
£6 Barometer Gage Eudiometer, - 41 
s¢ Improved Mercurial Sliding Rod Hydro. Oxy 
Eudiometer, - - 45 
ee Carbonicometer, - - - 48 
Quinby’s Diagrams, - - 127,345 
Crystals of Topaz, from Huntington, Ct, by c U. mhepard, 158 
Crystal of Cyanite, 159 
66 
of Sillimanite, - - és - 160 
