LOND. AND EDIN. PHILOSOPHICAL MAGAZINE, 1832 1838. 23 



Formic acid, preparation of, iii, 313; ar- 

 tificial preparation of, xi. 399. 



and acetic acid, difference between, 



iii. 73. 



acid and ulmin, conversion of sugar 



into, vi. 399. 



Forster's (Capt.) pendulum experiments, 

 on, iv. 230. 



Forster (Edward) on the Esula major 

 Germanica of Lobel, x. 71. 



Fossils : — remains in the limestone near 

 Edinburgh, iv. 77 ; zoology, on, ii. 

 473 ; plants, ii. 475 ; vii. 487 ; fruits, 

 iii. 76 ; bone caverns, iii. 237 ; col- 

 lected in Cutch, V. 217; fossil wax, 

 V. 316; scales, analysis of, vii. 396; 

 wood, veins of crystallized carbonate 

 of lime in, vii. 76; Polyparia, vii. 

 483; fossil fish, v. 461 ; vii. 485; 

 viii. 72 ; trees, vii. 487 ; Crustacea and 

 Radiata, vii. 517; genera Pseudam- 

 monites and Ichthyosiagonites, ix. 32; 

 Sivatherium giganteum, ix. 1 93, 277 ; 

 remains, ix. 244, 352, 354, 386, 490, 

 498 ; wood, ix. 499 ; of the London 

 clay, ix. 462; beaks of the Chimaera, 

 viii. 4; catalogue of fossil fish, viii. 366 ; 

 vertebra; of fish, viii. 557 ; vegetable 

 remains, viii. 574 ; jaw of a gi^jantic 

 quadrumanous animal, xi. 33; fossil 

 monkey, xi. 393; ferns, xii. 95; fishes 

 in the Lancashire coal-field, xii. 86 ; 

 Quadrumana, xii. 34. 



Foster (Capt.), account of, i. 238. 



Fourier (M.) on an error in his " Ana- 

 lyse des Equations," xi. 38. 



Fox of the Himalayan mountains, x. 304. 



Fox (C.) on the construction of skew 

 arches, viii. 299 ; on the oblique arch, 

 x. 167. 



(11. W.) on the magnetic needle, 



and the electro-magnetism of the 

 earth, i. 310; on the igneous hypo- 

 thesis of geologists, i. 338 ; on a ma- 

 rine deposit in the cliffs near Falmouth, 

 i. 47 1 ; sketch of the granite district 

 near Penryn, ii. 322; on an instru- 

 ment for ascertaining various proper- 

 ties of terrestrial magnetism, iv. 81 ; 

 on magnetic attraction and repulsion, 

 v. 1 ; on electrical action, v. 6; elec 

 trical relations of metals and metalli- 

 ferous minerals, vi. 300; on the abs- 

 ence of magnetism in cast iron in fu- 

 sion, vii. 388 ; on the laws of magnetic 

 attraction, vii. 439 ; on the magnetic 

 forces, viii. 108 ; on the change in 

 the chemical character of minerals in- 

 duced by galvanism, ix. 228 ; on the 

 formation of mineral veins, ix. 387 ; 

 results of his experiments on the pro- 

 duction of artificial crystals, x. 171 ; 



on the process by which mineral veins 

 have been filled, xi. 203; on the tem- 

 perature of some mines in Cornwall 

 and Devonshire, xi. 520. 



Fractions, vanishing, viii. 295,393, 515; 

 theory of, ix. 1 8, 92, 209. 



Francis ( W. ) on the motion of certain Po- 

 lygastrica,xi. 448; notice of Wiegmann's 

 " Herpetologia Mexicana," viii. 410. 



Freshwater formation in the Pyrenees, 

 on a, iv. 376. 



Fresnel's law of double refraction, viii, 

 104, 248 ; x. 43 ; theory of double re- 

 fraction, on, X. 24 ; optical theory of 

 crystals, analytical reduction of, xi. 

 462; xii. .73, 259, 341 ; wave-surface, 

 method of finding the equation to, xii. 

 335. 



Freyer (Lieut.) on the elevation of land 

 on the coast of South America, vii. 318. 



Fritsche's experiments on pollen, xi. 165. 



P>og, contractions of the, xii. 197. 



Fruit,[structure of, ii. 1 29. 



Fulgoridae, on the, xii. 93. 



Fumar acid, composition of, xi. 164. 



Functions, calculus of, on a paradox in, 

 ix. 334, 443. 



Fungi, hymenium of,x. 492. 



Furs, method of dressing, so as to pre- 

 serve their colour, &c., iii. 297. 



Fusion of metals, i. 202. 



Fuss's ( M. G.) magnetical and meteoro- 

 logical observations at Pekin, i. 130. 



Fyfe (Dr.; on the use of sulphate of cop- 

 per for exciting voltaic electricity, xi. 

 145 ; on the employment of iron in the 

 construction of voltaic batteries, xi. 

 150. 



G 



on a property of the parabola, x. 



Gadolinite, analysis of, vii. 430; xi. 143, 



Gaging, on the art of, iv. 326. 



Gahn's blowpipe, modification of, xi. 58. 



Gale (Dr.) on Prof. Mitchell's method 

 of preparing carbonic oxide, vi. 232. 



Galictis, on the genus, xii. 529. 



Gallic acid, on, xi. 323 ; speedily prepared, 

 vi. 319; formation of, xi. 163. 



Galloway (T.) on the solar eclipse. May 

 15, 18*36. viii. 589. 



Galvanic shock-multiplier, on the, xi. 

 460. 



Galvanism : — spectra of galvanic flames, 

 ix. 3; galvanic pile, its application to 

 chemical substances under tlie micro- 

 scope, ix. 13; difference between gal- 

 vanic and mechanical electricity, ix. 

 212 ; change in the chemical character 

 of minerals by, ix. 228; new galvanic 

 battery, ix. 472. 



GalvancHueter, its efficiency for determi- 



