INDEX. 



709 



Dram-signalling in Africa, Hvde Clarke 



on, 620. 

 Duncaii (Prof. P. M.) on the carboniferous 



polyzoa, 76. 



Earnshaw (Rev. S.) on the integral of 



Laplace's equation in finite terms, 



486. 

 *Bast African expedition, the Royal 



Geographical Society's, under Mr. J. 



Thomson, latest news of, 656. 



* Economic Science and Statistics, Ad- 



dress by G. W. Hastings to the Section 

 of, 671. 



* Elasticity of wires, J. T. Bottomley on 



the, 494. 

 , secular experiments upon the, re- 

 port of the Committee for commencing, 



61. 

 Electric convection-currents, Prof. S. P. 



Thomjison on, 470. 

 =*Electro-magnetic gyroscope, W. de Fon- 



vielle on an, 500. 

 Electro-magnetic imit, the number of 



electrostatic units in the, R. Shida on, 



497. 

 Electro-motors, improvements in, T. 



Wiesendadger on, 501. 

 Electrostatic units, the number of, in the 



electro-magnetic imit, R. Shida on, 



497. 

 Elliptic function formulje, the deduction 



of trigonometrical from, J. W. L. 



Glaisher on, 477. 

 ^Elliptic functions, a kind of periodicity 



presented by some, Prof. H. J. S. 



Smith on, 482. 

 Elwes (Capt. H. J.) on the relation of the 



Lepidoptera of Great Britain to those 



of other countries, 604. 

 EngUsh stations in the hill regions of 



India, the progress of the, Hyde Clarke 



on, 686. 

 Eozoon Canadense, proofs of the organic 



nature of, by C. Moore, 582. 

 Equations to the real and to the imagi- 

 nary directrices and latera recta of the 



general conic («, h, c, e, f, g, h) (.r, 



ifiy^o. Prof. R. W. Genese on the, 



with a note on a property of the director 



circle, 480. 

 Erratic blocks of England, Wales, and 



Ireland, eighth report on the, 110. 

 Etheridge (R., jun.) on the ' Geological 



Record,' 87. 

 Evans (Dr. J.) on the exploration of 



Kent's Cavern, 62 ; on the ' Geological 



Record,' 87 ; on the exploration of the 



caves of the South of Ireland, 209. 

 Everett (Prof.) on underground tempera- 



tiu'e, 26. 

 Expansion of steam in non-rotative 



pumping engines, H. Davey on the, 



€97. 



Farr (Dr.) on the work of the -Vnthropo- 

 metric Committee, 120. 



Fault systems of Central and West 

 Cornwall, J. H. Collins on the, 584. 



*Fawcus (G.) on combined elliptical, 

 parallel, and angular motion, 699. 



Fellows (F. P.) on the work of the Anthro- 

 pometric Committee, 1 20 ; on the pre- 

 sent appropriation of wages and sources 

 of income, 318 ; on Admu-alty monies 

 and accounts, 668. 



Field (R.) on the phenomena of the 

 stationary tides in the English Channel 

 and the North Sea, and the value of 

 tidal observations in the Xorth Atlantic 

 Ocean, 390. 



Films of water, thin, experiments on, 

 with regard to tlieiv absorption of 

 radiant heat, by the Hon. F. A. R. 

 Russell, 490. 



Fish, the preservation of, and preventing 

 the pollution of rivers, Lieut.-Gen. Sir 

 J. E. Alexander on, 672. 



*Fitzgerald (G. F.) on the possibility of 

 originating wave-disturbances in the 

 ether by electro-magnetic forces, 497. 



Flight (W.) on observations of liuninous 

 meteors during the year 1879-80, 39. 



Flint- workers, the British, at Brandon, 

 J. P. Harrison on, 626. 



Foote (R. B.) on the occurrence of stone 

 implements in the coast laterite, south 

 of Madras, and in high-level gravels 

 and other formations in the South 

 Mahratta country, 589. 



Forbes (Prof. G.) on the measurement of 

 tlie lunar disturbance of gravity, 25 ; 

 on observations of luminous meteors 

 during the year 1 879-80, 39 ; on im- 

 provements in astronomical clocks, 56. 



*Forster (W.) on Australian autochthony, 

 620. 



Foster (Dr. C. Le Neve) on underground 

 temperature, 26. 



Foster (Prof. G. C.) on an investigation 

 for the purpose of tixing a standard of 

 white light, 119 ; on the present state 

 of om- knowledge of spectrum analysis, 

 258. 



Foster (Prof. M.) on the influence of 

 bodily exercise on tlie elimination of 

 nitrogen, 159 ; on the occupation of a 

 table at the zoological station at 

 Naples, 161. 



Fox (H. C.) supplement to a jiaper on the 

 synchronism of mean temperature and 

 rainfall in the climate of London, 493. 



French deep-sea exploration in the Bay 

 of Biscay, J. Gwyn .Jeffreys on the, 

 378. 



, the Rev. A. M. Norman on the, 387. 



Fundamental invariants of algebraic 

 forms, the calculation of tables of the, 

 report on, 38. 



