RAE 
Quinby, A. B., on crank motion, 
vii, 316; ix, 317; xi, 338f; xii, 
344!; xiii, '73, 356. 
, on pitchback and_ breast 
wheels, xi, 333. 
,on high and low pressure 
boilers, ix, 313.f 
, on the spiral of Archimedes, 
ix, 316.f 
, new demonstrations on the the- 
ory of the overshot water-wheel, 
ix, 804!; x, 2035 xi, 335. 
Quinine, preparation of, xlvii, 196. 
, remarks upon, xx, 52. 
, sulphate of, frauds in, x, 386. 
, ——, mode of detecting its 
adulteration with sugar, xii, 400. 
, manufactures of, in France, 
xiv, 390. 
Quinoline, xlvii, 196. 
R. 
Races of men, enumeration and 
characters of, S. G. Morton, 
xxxviil, 842f; xlvii, 206. 
——, stature of, xxil, 357. 
, Indian, of America, charac- 
teristics of, S. G. Morton, xxxviii, 
345, 347, 360'; xlvii, 408. 
of the Andes, ancient, xxix, 
358. 
, Peruvian, characteristics of 
ancient and modern, S. G. Mor- 
ton, xxxviil, 361, 365.f 
Radiant heat, transmission of, MV. 
Melloni, xxvii, 228. 
, B. Powell, x\, 313. 
Radiation of heat, A. D. Bache, 
xxx, 16; xxxiv, 39. 
——, apparatus for illustra- 
ting, xxviii, 320.f 
Radius of the earth, xxxi, 234. 
Rae, J., balloon raised by solar heat, 
xxxill, 196. 
Rafinesque, C. S., progress of veg- 
etation near Philadelphia, i, ‘77. 
, on atmospherical dust, i, 897. 
, on the genus Flerkea, i, 373. 
212 
R ATI 
Rafinesque, C. S., Cylactis, Nemo- 
panthus and Polanisia, three gen- 
era of New York plants, i, 377. 
, description of the Xanthium 
maculatum, 1, 151. 
, new genus (Exoglossum) of 
freshwater fish, 1, 155. 
, Mustela vulpina, new species, 
1, 82. 
, Scytalus cupreus, or copper 
headed snake, i, 84. 
, Spongeson Long Island shores, 
i, 149. : 
, notice of the works of, xxix, 
393, 394. 
——, —— of zoological writings 
of, S. S. Haldeman, xlii, 280. 
, —— of the Botanical writ- 
ings of, xl, 221. 
Railroads in Austria, xx, 174. 
in the United States, extent of, 
J. Henry, xxxiti, 296. 
» Hudson and Mohawk, ac- 
count of, S. D. Bloodgood, xxi, 
141. 
, graduation of Mohawk and 
Hudson, xxi, 385.f 
, Baltimore, method of clearing 
the snow from, xx, 166.f 
curves, T. Gorton, xxvii, 131.f 
, elevation of, required for rails, 
over roads of a certain curvature, 
J. Thomson, xxii, 346.f 
, inclined planesinthe construc- 
tion of, J. Thomson, xxiit, 107. 
, hew species of grass, Diplo- 
cea, barbata, i, 252. 
, turn-outs in, with flexible 
moveable rails, 7. Gorton, xxvill, 
248. 
cars, rapidity consistent with 
safety, xxxv, 197. 
, improved method of con- 
structing, xxxv, 318. 
, cast iron sleepers for, xxxv, 
318. 
, resistance of air to trains of, 
xxxvill, 136. 
——, atmospheric, xlix, 228. 
—— tunnel, in Pennsylvania, xxix, 
73. 
Railways, vibration of, Denham, 
xxx, 382. 
