402 INDEX. 
the magnetic action of strong electrical currents on different 
bodies, 372, 373. . 
Electro-Magnetism, on a new phenomenon of, 122. Electrical 
effects produced at the moment of the combination of the metals 
and alkalis, with the acids, 136—138. On electro-magnetic 
multipliers, 161. On electro-motive actions produced by the 
contact of metals and liquids, 374. 
Electrometer of Dr. Hare, notice of, 377. 
Encke (Professor) on the periodical comet (86 Olb.) 96 
Erman (M.) experiments and observations of, on a reciprocity of in- 
» sulating and conducting action, which the incandescent platina 
of Davy exerts on the two electricities, 369—372, 
Evans (Col.) experiments of, on the action of sulphur on iron, 165 
Evaporation, observations and experiments on, 46—61 
Lye, on the motions of, in illustration of the uses of the muscles and 
nerves of the orbit, 123, 124, 127. Observations on the appa- 
rent direction of the eyes in a portrait, 264—276 “a 
Fallows (Rev. F.) an easy method by, of comparing the time indi- 
cated by any number of chronometers with the given time at a 
certain station, 315, 316 
Faraday (M.) experiments on fluid chlorine, 123. And on the 
condensation of several gases into liquids, 124, 125. On the ex- 
istence of a nitrate and a salt of potash in Cheltenham waters, 178 
Ferrari (M.) process of, for obtaining strychnia, 170, On the 
volatility of salts of strychnia, abed., 171 
Fiedler and Hagen (MM.) observations of, on sand-drigs or fulgo- 
rites, 181—183 
Fish, Chinese mode of hatching, 176 
Fishes, observations on the possibility of changing the residence of 
certain, from salt water to fresh, 209—-231]. On the generation 
of fishes, 277 
Fissures, on the capillary action of, 151, 152 
Fossil Shells, observation on, 129, 267 
Frost, test for the action of, on building materials, 148, 149 
Frost (Mr.) syllabus of his course of lectures on botany, 284, 285 
Fuel, comparative advantage of coke and wood for, 361 
Fulminating silver and mercury, results of experiments on, 153— 
157 
Fulminic Acid and fulminates, experiments on and analysis of, 386 
Gases, experiments on the condensation of, 123, 124, 125. On the 
application of liquids, formed by such condensation, as mecha- 
nical agents, 125. The odour of hydrogen gas extraneous, 380 
Geneva, expense of the iron-wire suspension bridge at, 148. . Its 
durability, 147 
Getres, notice of the remoyal of the glacier of, 396, 397 
Goring (Dr.) On indistinctness of vision, caused by the presence of 
false lights in optical instruments, and remedies for it, 1728, 
