990 
Committee for improving and experi- 
menting with a, 471. 
Delgovitia, a probable site of, by T. R. 
Mortimer, 980. 
Denny (Prof. A.) *on an abnormality in 
Tropeolum, with remarks on the origin 
of the spur, 855; *on the tracheal oc- 
clusor apparatus in insecta, 864. 
De Rance (C. EH.) on the erratic blocks 
of England, Wales, and Ireland, 340; on 
the circulation of underground waters, 
352; on the cretaceous polyzoa, 378. 
Devonian rocks, the, as described in De 
la Beche’s report, interpreted in accord- 
ance with recent researches, by W. A. 
EK. Ussher, 801. 
Dewar (Prof.) on the preparation of a 
new series of wave-length tables of the 
spectra of the elements and compounds, 
224. 
*___ and Prof. Liveing, experiments on 
the combustion of gases under pres- 
sure, 776. 
Diagrams for reading-off indices, by Dr. 
Wilberforce Smith, 982. 
Diazo compounds of primuline and de- 
hydrothiotoluidine, the action of light 
upon the: a method of photographic 
dyeing and printing, by A. G. Green, 
C. F. Cross, and E. J. Bevan, 781. 
Diazoamido-compounds :astudyin chemi- 
cal isomerism, by Prof. R. Meldola, 780. 
Dibenzylketone, the condensation of, with 
oxalic ether, Dr. T. Ewan on, 788. 
Didymium, the spectra of the haloid 
salts of, by Dr. G. H. Bailey, 773. 
*Diffusion of motion, the, and propaga- 
tion of disturbance in some turbulent 
liquid motions, note on the relation 
between, by Prof. G. F. Fitzgerald, 757. 
Disappearance of native plants trom 
their local habitats, second report on 
the, 465. 
Dispersion and refraction in certain 
metals, H. HE. J. G. du Bois and H. 
Rubens on, 728. 
Distribution, the pure theory of, by A. 
Berry, 923. 
Dixon (Prof. H. B.) on electrolysis in its 
physical and chemical bearings, 138. 
._—— and J. A. Harker on the rate of 
explosion of hydrogen and chlorine in 
the dry and moist states, 776. 
Douglass (Sir J. N.) on the investiga- 
tion of the action of waves and currents 
on the beds and foreshores of estuaries 
by means of working models, 512. 
Dowie (Miss M. M.) on a journey in the 
Eastern Carpathians, 896. 
*Drawbacks of modern economic pro- 
gress, the, by EH. L. K. Gonner, 928. 
Druce (G. C.) on the disappearance of 
native plants from their local habitats, 
465. 
INDEX. 
Du Bois (Dr. H. E. J.G.) and H. Rubens 
on refraction and dispersion in certain 
metals, 728. 
Duggleby ‘ Howe,’ Rev. E. M. Cole, on the, 
Mo: 
Duncan (Dr. P. M.) on the cretaceous 
polyzoa, 378. 
. Dunstan (Prof. W. R.) on the present 
methods of teaching chemistry, 265. 
Dyes, fast and fugitive, by Prof. J. J. 
Hummel, 782. 
Earth-movements, the effects produced 
by, on pre-Cambrian and Lower Palzo- 
zoic rocks in some sections in Wales 
and Shropshire, by Dr. H. Hicks, 804. 
Earthquake and volcanic phenomena of 
Japan, tenth report on the, 160. 
East Yorkshire during the glacial period, 
by G. W. Lamplugh, 798. 
Easterfield (T. H.) and Dr. J. M. Wilson, 
the River Aire: a study in river pollu- 
tion, 780. 
Ecballium elateriwm, dehiscence of fruit 
of, by Prof. T. Johnson, 867. 
Economic fallacies, some typical, made 
by social reformers, L. L. Price on, 
928. 
*Economic progress, the drawbacks of 
modern, by E. L. K. Gonner, 928. 
Economic Science and Statistics, Address 
by Prof. A. Marshall to the Section of, 
898. 
Edgeworth (Prof. F. Y.) on the best 
methods of ascertaining and measur- 
ing variations in the value of the 
monetary standard, 485; on the statis- 
tical data available for determining 
the amount of the precious metals in 
use as money, &c., 498; the element of 
chance in examinations, 920. 
Effect of direct and alternating pres- 
sures on the human body, the, by J. 
Swinburne, 758. 
*Heos of birds, some of the probable 
causes of variation in the, by H. B. 
Hewetson, 860. 
Egypt, ancient maps of, by Cope White- 
house, 896. 
Elbolton Cave exploration, by Rev. E. 
Jones, 817. 
*Klectric lighting and fire insurance 
rules, W. Hartnell on, 958. 
*Electric meter, a new, by Sir W. Thom- 
son, 956. 
Electric tramway, the Lineff, by G. Kapp, 
956. 
Electrical behaviour of semipermeable 
membranes, Prof. Ostwald on the, 
331. 
Electrical measurements, report of the 
Committee for constructing and issuing 
practical standards for use in, 95. 
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