682 



INDEX. 



Crafts (Prof. J. M.) on the boiling points 

 and vapour tension of mercury, of 

 sulphur, and of some compounds of 

 carbon, determined by means of the 

 hydrogen thermometer, 317 ; on the 

 comparison of the mercury with the 

 hydrogen thermometer, 449. 



and A. Rillict on the decomposition 



by heat of chlorate of potassium, 493. 



Crampton (T. R.), a system of excavating 

 the Cliannel tunnel by hydraulic 

 machinery, 664. 



Crime, the state of, in England, Scotland, 

 and Ireland in 1880, by Prof. L. Levi, 

 375. 



Crom^Dton (E.) on the determination of a 

 gauge for the manufacture of various 

 small screw.s, 311. 



Crosskey (Rev. Dr.) on the circulation 

 of underground waters, 213 ; on the 

 erratic blocks of England, Wales, and 

 Ireland, 243 ; on the" workings of the 

 proposed revised New Code, and of 

 other legislation affecting the teach- 

 ing of science in elementary schools, 

 307. 



Crustacea, the nature of the 'telson' 

 and ' caudal f urea ' of the. Dr. M. M. 

 Hartog on, 575. 



Cunningham (Major A.) on unsteady 

 motion in open channels, 665 ; con- 

 vexity of surface of streams, ih. ; de- 

 pression of maximum velocity, 'ih. 



Current meter observations in the tidal 

 compartment of the Thames, by Prof. 

 W. C. Unwin, 676. 



Darwin (G. H.) on the measurement of 

 the lunar disturbance of gravity, 95 ; 

 on variations in the vertical due to the 

 elasticity of the earth's surface, 106 ; 

 on the method of harmonic analysis 

 used in deducing the numerical values 

 of the tides of long period, and on a 

 misprint in the tidal report for 1872, 

 819 ; a numerical estimate of the 

 rigidity of the earth, 472. 



Darwin (H.) on the measurement of the 

 lunar disturbance of gravity, 95. 



Dawkins (Prof. W. Boyd) on explora- 

 tions in caves of carboniferous lime- 

 stone in the south of Ireland, 240 ; 

 on the erratic blocks of England, 

 Wales, and Ireland, 243 ; on the geology 

 of the Channel tunnel, 542 ; Address 

 by, to the Department of Anthropologj', 

 697 ; *the light thrown by the explora- 

 tion of caves on the conquest of Britain, 

 607. 



Day (St. J. V.) on patent legislation, 310. 



Deacon (G. F.) on underground tempera- 

 ture, 72. 



Deane (Dr.) on the erratic blocks of 

 England, Wales, and Ireland, 243. 



Decimal coinage and measures in America, 

 R. de T. Gould on, 653. 



Delany (Rev. W.) on the workings of the 

 proposed revised New Code, and of 

 other legislation affecting the teaching 

 of science in elementary schools, 307. 



De Ranee (C. E.) on the circulation of 

 underground waters, 213; on the 

 erratic blocks of England, Wales, and 

 Ireland, 243 ; on the iron and lead 

 measures of Tynehead, Alston, 531 ; 

 on the proposed Channel tunnels in 

 their geological aspects, 544. 



Deserts of Africa and Asia, the, by P. de 

 Tchihatchef, 356. 



Dewar (Prof.) on fixing a standard of 

 white light, 38 ; on the present state 

 of our knowledge of spectrum analysis, 

 120 ; on the preparation of a new 

 series of tables of wave-lengths of the 

 spectra of the elements, 144. 



and Prof. Liveing on the reversals 



of the spectral lines of metals, 495. 



Diamond, the application of the, to 

 mineraloglcal and chemical analysis, 

 Prof, von Baumhauer on, 489. 



. mines, certain ancient, in India, the 



identification of. Prof. V. Ball on, 625. 



Dickinson (J.) on underground tempera- 

 ture, 72. 



Differential equation, a partial, J. W. L. 

 Glaisher on, 454. 



Diffraction gratings, a machine for ruling 

 large, A. Mallock on, 466. 



Distribution of energy in the solar spec- 

 trum, Prof. S. P. Langley on the, 459. 



Divers (Prof. E.) and M. Shimose on the 

 occurrence of tellurium and selenium 

 in Japan, 487. 



Dixon (H. B.), *the influence of aqueous 

 vapour on the exjDlosion of carbonic 

 oxide and oxygen, 486 ; the velocity 

 of explosion of a mixture of carbonic 

 oxide and oxygen with varying quan- 

 tities of aqueous vapour, 487. 



Dobson (G. E.) on the homologies of 

 the long flexor muscles of the feet of 

 mammalia, 574. 



Donaldson (J.), torpedo-boats, 672. 



♦Draught of chimneys, the effect of wind 

 on the, Prof. Lord Rayleigh on, 477. 



Drift phenomena of Hampshire, notes 

 relating to some of the, by Prof. Prest- 

 wich, 529. 



Du Bois-Reymond (Prof. E.) on a new 

 principle affecting the systematic dis- 

 tribution of the Tmyedinida, and on 

 the probable occurrence of T. Occi- 

 dentalis (Storer) on the British coast, 

 592. 



Duncan (W. S.), evidence as to the scene 

 of man's evolution, and the prospects 

 of proving the same by palieontological 

 discovery, 605. 



