INDEX. 



561 



De la Rue (W.) 011 the distribution of 

 solar spotted areas in heliographic 

 latitude, 79. 



Dietrich (M.) on the determination of 

 nitrogen, 61. 



Earth, on the figure of the, 10, 145, 

 261, 332, 445 ; on the excentricity 

 of the orbit of the, and its phy- 

 sical relations to the glacial epoch, 

 119. 



Ecliptic, on the change in the obli- 

 quity of the, and its influence on 

 climate, 426, 536. 



Edlund (E.) on the elongation of a 

 conductor traversed bv a current, 

 154. 



Electric currents, on the elongation 

 of a conductor traversed by, 154 ; 

 on the theory of the maintenance 

 of, by mechanical work, 474. 



discharge, on the action of mag- 

 netism upon the, in highly rarefied 

 gaseous media, 512. 



Electrical force, on the conversion of 

 dynamical into, 469. 



measurements, on the British- 

 Association unit for, 397. 



Electricity, on the means of increas- 

 ing the quantity of, in induction- 

 machines, 63 ; on the propagation 

 of, in highly rarefied elastic fluids, 

 241. 



Ethers, on the chlorinated, 449. 



Euclid, on a rigorous demonstration 

 of the 12th axiom of, 264. 



Figures of equilibrium of a liquid 

 mass without weight, researches on, 

 39. 



Films, liquid, on the theory of the 

 production of, 42 ; on the tension 

 of, 270. 



Flames, on sounding and sensitive, 

 92, 216, 287, 375. 



Fluid in motion, on some effects pro- 

 duced by a, 99. 



——— pressure, on negative, 207. 



Fluorescence, on the thermal radia- 

 tion produced by, 316. 



Forbes (D.) on the mineralogy of 

 South America, 131. 



(G.) on the meteoric shower of 



the 14th Nov. 1866,81,282. 



Fouque (M.) on the relations existing 

 between the composition, density, 

 and refracting-power of saline so- 

 lutions, 555. 



Fresnel, on a theory proposed by, 

 540. 



Friedel (M.) on some compounds of 

 silicon, 451. 



Gases, on the disengagement of, from 

 their saturated solutions, 479. 



Gaugain (M.) on Grove's gas-battery, 

 465. 



Geological Society, proceedings of the, 

 73, 152, 233, 314, 396, 544. 



Gernez (M.) on the disengagement of 

 gases from their saturated solutions, 

 479. 



Glacial epoch, on the excentricity of 

 the earth's orbit, and its physical 

 relations to the, 119. 



Grove (W. R.) on aplanatic telescopes, 

 161. 



Grove's gas-battery, on, 465. 



Gun-cotton, researches on, 545. 



Harrison (J. P.) on radiation and va- 

 pour, 283; on the relation of inso- 

 lation to atmospheric humidity, 

 391. 



Haughton (Rev. S.) on the wave- 

 lengths of the transmission of mus- 

 cular and nervous action, 118. 



Heat, on the evolution of, by the ra- 

 pid rotation of a disk in vacuo, 224 ; 

 on the influence of the adhesion of 

 vapour in experiments on the ab- 

 sorption of, 413. 



, radiant, on the production of, 



by fluorescence, 316. 



Heath (D. D.) on the dynamical theory 

 of deep-sea tides and the effect of 

 tidal friction, 165, 400. 



Heaton (W.) on the function of the 

 blood in muscular work, 341. 



Helmholtz (H.) on integrals of the 

 hydrodynamical equations which 

 express vortex-motion, 485. 



Hennessy (Prof.) on the physical pro- 

 perties of water in relation to ter- 

 restrial climate, 211. 



Herschel (Sir J. F. W.) on the mete- 

 oric shower of 1866, 156. 



Him (G. A.) on the expansion of 

 superheated steam, 236. 



Hodgkinson (Rev. G. C), actinome- 

 trical observations among the Alps 

 by, 304. 



Horology, on the application of the 

 tuning-fork to, 240. 



How (Prof.) on the mineralogy of 

 Nova Scotia, 336. 



