92 
GENERAL INDEX. 
Congo, the Lower, R. C. Phillips on, 1887, 
798 
t-railway, Capt. Thys on the, 1889 ,659 
^Congruencies of the second order and 
second class, Dr. Hirst on, 1881, 534 
Conic, law of force to any point when 
the orbit is a, J. W. L. Glaisher on the, 
1878, 464 
—— osculation, F. W. Newman on, 1869, 
13 
-in space, the eighteen co-ordinates 
of a, W. Spottiswoode on, 1878, 462 
—— section and a cubic curve, Prof. F. 
Lindemann on the tactinvariant of a, 
1884, 647 
Conics, Prof. Cayley on a formula of M. 
Chasles relating to the contact of, 
1864, 1 
-satisfying four conditions, Dr. T. A. 
Hirst on Halphen’s new form of 
Chasles’s theorem on systems of, 1878, 
464 
- M. Halphen sur un criterium de 
Steiner relatif a la theorie des sections 
coniques, 1881, 532 
*Conifera 3 , W. Moggridge on the zones of 
the, from the Mediterranean to the 
crest of the Maritime Alps, 1866, 76 
--- British, the history and affinities of, 
W. Carruthers on, 1870, 71 
Coniston group, Prof. Harkness and Dr. 
Nicholson on the, of the Lake district, 
1867, 61 
Connaught Coal-Measures, T. A. Readwin 
on the coal- and iron-mines of the 
Arigna district of the, 1872, 122 
Connecticut valley, Prof. W. B. Rogers 
on a peculiar fossil found in the Me¬ 
sozoic sandstone of the, 1864, 66 
Connemara and Joyce’s country, Prof. 
Harkness on the metamorphic rocks 
and serpentine marbles of, 1865, 59 
Conocoryphean, the primitive, G. F. 
Matthew on, 1884, 743 
Conoidal cubic surface called the ‘cylin- 
droid,’ Prof. R. S. Ball on a model of a, 
1871, 8 
Coxeoy (Sir J.), a note on some obser¬ 
vations of the loss which light suffers 
in passing through glass, 1886, 527 
Consanguinity, Dr. Gilbert W. Child on 
marriages of, 1862, 104 
^Consciousness and the seat of sensation, 
the physical relations of, Prof. Cleland 
on: a theory proposed, 1870, 135 
e Conservation of force,’ P. Hallett on the 
bearings of the, on life, 1875, 169 
Constantinople to Kurrachee, Col. iSir H. 
C. Rawlinson on the direct overland 
telegraph from, 1861, 197 
Constituencies, R. B. Hayward on the 
chances of success or failure of candi¬ 
dates for three-cornered or four-cor¬ 
nered, 1 S 68 , 9 
Constitutional characteristics of those 
who dwell in large towns, as relating 
to degeneracy of race, Dr. G. B. Barron 
on the, 1888, 836 
Consumption, pulmonary, Dr. Edwards 
Crisp on the statistics of, in 623 
districts of England and Wales, 1868, 
i5 8 
--- in Devonshire, the geography of: 
deaths from consumption during the 
ten years 1861-70, Dr. W. H. Pearse 
on, 1877, 112 
-the scientific prevention of, G. W. 
Hambleton on, 1886, 837 
- the scientific treatment of, G. W. 
Hambleton on, 1887, 903 
Consumptive persons, Dr. Edward Smith 
on the prevalence of numerous condi¬ 
tions affecting the constitution in 1000 , 
1862, 174 
^Contact electricity, Sir W. Thomson on, 
1876,45 
-electricity, an illustration of, pre¬ 
sented by the multicellular electro¬ 
meter, Sir W. Thomson on, 1890, 728 
-electricity in common air vacuum, 
and different gases, J. T. Bottomley 
on, 1885, 901 
* -- theory of voltaic action, W. E. 
Ayrton and J. Perry on the, 1876, 42 ; 
1877, 33 
Contagious Diseases Act, H. J. Ker 
Porter on the extension of the, 1868, 175 
■-the statistics of the. Dr. Berkeley 
Hill on, 1870, 194 
Continental communication, improved, 
J. Abernethy on, 1882, 665 
-- shelf, sea temperatures of the, Dr. 
H. R. Mill on, 188S, 739 
*—— and abyssal marine fauna, the 
limit between the, Rev. Canon Merle 
Norman on, 1889, 628 
Continued fraction, J. W. L. Glaisher on 
the calculation of e (the base of the 
Napierian logarithms) from a, 1871, 16 
* -fractions, Prof. H. J. S. Smith on, 
1875, 21 
Continuity of the fluid state of matter, 
speculations on the, by Prof. J. Thom¬ 
son, 1871, 30 
-historical note on, by Rev. Dr. C. 
Taylor, 1884, 645 
Contortion of Mountain-Limestone, ex¬ 
periments on, by L. C. Miall, 1869, 97 
-of rocks, L. C. Miall on the, 1871, 106 
Contortions of strata, a probable cause 
of, Dr. C. Ricketts on, 1888, 684 
Convergents, T. Muir on, 1876, 27 
^Convict labour, C. J. Appleby on the 
mechanism for utilizing and regu¬ 
lating, 1868, 188 
^Convicts, male, on the utilization or 
more profitable employment of, 1S67, 
143 
