FLU 88 F 00 
Fluidity of the earth’s centre, L.)Fluorine in bones, J. L. Smith, xlvii, 
Cordier, xv, 109, 117. 131. 
, Fourier, xxxil, l. , source of, J. L. Smith, 
Fluids, compression of, xxi, 381. xlviii, 99. 
——, revolving motion in, xix, 391. in recent bones, C. Daubeny, 
, resistance of, L. R. Gibbes,|| xlvii, 186. 
xxvii, 135. Fluxions, a theory of, E. Wright, 
—5 , A. Bourne, xxviii, 231.|| xiv, 380f; xv, 196; xvi, 53.f - 
——, resistance of, LE. W. Blake,|\—-—, solution of a problem in, T. 
xxix, 274; xxx, 309. Strong, xvi, 283; xvii, 69, 329; 
> — Russell, xxix, 351. xvill, 67. (See Forces, next page.) 
—., , G. W. Keely, xxviii,|/Fluxional ratio, application of, E. 
318f; xxx, 164; xxxi, 111. Wright, xxiv, 298; xxv, 93.f 
, upward forces of, E. C. Genet,||Flying in the air, De Chabrier’s 
xi, 110, 389f; xii, 94, 310; xiii,|| views on, xix, 395. 
377. Fogs, remarks on, W. C. Redfield, 
—, T. P. Jones, | in|} xxxii, 54. 
reply to E. C. Genet, xiii, 79. , on the formation of, W. M. 
Fluor-spar, of Canada, viil, "1. Carpenter, xliv, 40. 
, of Connecticut, i, 141 Ss ic , polar, xiv, 378. 
254; vi, 212. Food for sheep, different kinds of, 
, of Indiana, (Shawneetown,)]) xxii, 393. 
i, 52; ii, 176; iil, 243, 367. Foot, L., on Indian summers, xxx, 8. 
, of Massachusetts, 1, 1386; iv, ; notiees in geology and mine- 
50; v, 405, 407; vil, 54. ralogy, iv, 35. 
, of New Hampshire, xviii,|Footprints, American, E. Hitch- 
133, 291; xxxiv, 117. cock on, in Connecticut valley, 
, of New Jersey, v, 246. xxix, 307f; xxxi, 174; xli, 165; 
, of New York, iii, 235, 367;|| xlvii, 118, 292f, 390; xlviii, 61. 
xxvii, 176. >; —, , general table of, 
, of Pennsylvania, x, 221; xiv,|| xxxii, 174. 
‘ sear a , general review 
, of Rhode Island, viii, 231;] of, with descriptions of species, 
ix, 46. xlvii, 1138, 304.f 
, of Tennessee, iv, 51. : A ; miscellaneous 
, of Vermont, iv, 43, 188; v,|| remarks upon, xlviil, 61. 
272; vii, 59. : ; , reply to J. 
, of Virginia, iii, 248 ; iv, 277.|| Deane, xlvii, 390. 
, of Sicily, viii, 205. 5 , J. Deane on, in the 
, chlorophane variety in Con- Connecter valley, xlv, 178; 
necticut, ii, 141; v, 254; vi, 212.) xlvi, ‘73; ali, 381; xlvili, 158! ; 
» hew phenomenon of color in, hee, 798, 213.f 
Xxxv, 295. ——, ——., discovery of, 
Fluoric acid in mica, ii, 376. aiviik 381. 
, its application to etch- ; , at Turner’s falls, 
ing glass, vi, 354.f Mass., xlvi, 73.f 
and fluates, xiv, 3887. ) > , batrachian, in 
Fluoride of iodine, H. B. Leeson,|| the Connecticut river sandstone, 
xlix, 205. xlix, 79f, 213.£ 
Fluorine in bones, notice of inves- ) , reply of, to E. 
tigations regarding, xlvii, 419. Hitchcock, xlvil, 399. 
