GENERAL INDEX. 
103 
taking sub-surface observations, by 
Prof. H. S. Hele Shaw, 1883, 654 
Current-weigher, a new form of, for the 
absolute determination of the strength 
of an electric current, Prof. J. Blytli 
on, 1886, 521 
Currents of the Bosphorus and Darda¬ 
nelles, Dr. Carpenter on the under-, 
1873, 41 
- report on instruments for measuring 
the speed of ships and , 1872, 176 ; 1873, 
460 ; 1874, 255 ; 1878 , 219 ; 1879,210 
— of air between plates, the action 
of, P. Braham on, 1883, 447 
* Curry (J.) on the formation of certain 
columnar structures, 1868, 62 
-on the general conditions of the 
Glacial epoch, with suggestions on the 
formation of lake-basins, 1871, 95 
*Curtin (J.) on myths of the Modoc 
Indians, 1884, 910 
*Curtis (Prof. A. H.) on certain theorems 
in Laplace’s discussion of the figure of 
the earth and precession and nutation, 
1865, 6 
-on certain applications of Newton’s 
construction for the disturbing force 
exerted by a distant body, 1874, 10 ; 
on extraordinary reflection, 25 
—— on the condition which must be 
fulfilled by any number of forces 
directed towards fixed, or movable, 
centres, in order that any given curve 
shall be described freely by a particle 
acted on by these forces simultane¬ 
ously; and an analogous problem, 
1879, 290 
Curve in space, A. Cayley on the repre¬ 
sentation of a, by means of a cone and 
monoid surface, 1862, 3 
-of the fourth order, A. Cayley on a, 
1862, 3 
Curves of the third order, A. Cayley on, 
1861, 2 
-in space, quaternion proof of a 
theorem of reciprocity of, Sir W. R. 
Hamilton on, 1862, 4 
- plane, Prof. Cremona on the geo¬ 
metrical transformation of, 1864, 3 
- of the third degree, here called 
tertians, F. W. Newman on, 1869, 10 
-doubly diametrical quartan, F. W. 
Newman on, 1871, 20 
- — tri-diametral quartan, F. W. New¬ 
man on, 1872, 22 ; on, with three 
or four diameters, 23 ; on monodia- 
metral, ib. 
* -of the fifth class, Prof. Clifford on 
some, 1873, 9 
■ -on spheres, H. M. Jeffery on the 
shadows of plane, 1875, 15 
■ -general theorems relating to closed, 
by Prof. P. G. Tait, 1876, 29 
-of the fourth class, with quadruple 
foci, PI. M. Jeffery on plane and 
spherical, 1880, 478 
Curves of double curvature , Prof. Sturm 
on some new theorems on, 1881, 440 
-of the fourth class, with a triple 
and a single focus, H. M. Jeffery on, 
1883, 4 L 2 
*-in space, Prof. Cayley on, 1889, 499 
-geometrical, Dr. Booth on H. Johns¬ 
ton’s instrument for describing, 1862, 3 
-scale for measuring, PI. Schlagint- 
weit on a new revolving, 1863, 25 
-the mechanical tracing of, W. H. L. 
Russell on, 1869, 15 
Curve-ranger, A. P. Trotter on a, 1889, 
75i 
*Curzon (Hon. G.), the Central Asian 
railway in relation to the commercial 
rivalry of England and Russia, 1889, 
663 
Cuscus, the myology of the shoulder and 
upper arm of the, Dr. D. J. Cunning¬ 
ham on, 1877, 107 
- the brachial plexus of the, Dr. D. 
J. Cunningham on, 1877, no 
Cushing (F. H.) on the development of 
industrial and ornamental art among 
the Zunis of New Mexico, 1884, 914 
Cust (R. N.) on the progress of African 
philology, 1885, 1105 
■•''Customs tariffs, A, E. Bateman on, 
1885, 1169 
^Cutting cloth, C. Blyth on an improved 
machine for drawing-off, measuring, 
and, 1868, 188 
Cuttlefish, Robert Garner on a male 
octopodous, 1868, 96 
Cyanides of ethylene, Thomas Fairley on 
polyatomic , 1868, 519 
“Cyanogen, T. Fairley on the reactions 
of, 1865, 29 
-T. Fairley on, 1870, 54 
-carbonic acid and, I. L. Bell on 
the joint action of, on oxide of iron 
and on metallic iron, 1874, 51 
-- Dr. T. L. Phipson on the presence 
of, in commercial bromine, and a means 
of detecting it, 1874, 66 
Cyathina Smithii, J. Gwyn Jeffreys on an 
abnormal form of, 1861, 146 
Cycadece, W. Carruthers on British fos¬ 
sil, 1867, 80 
Cycle of development, H. M. Westropp 
on the, 1875, 179 
Cyclical symbol. Rev. Prof. R. Harley 
on a certain, 1867, 4 
Cyclones, Isaac Ashe on the causes of the 
phenomena of, 1861, 266 
— I. Ashe on the cause of the pro¬ 
gressive motion of, and of the seasonal 
variations in their paths, 1874, 34 
- Charles Meldrum on a periodicity 
in the frequency of, in the Indian 
Ocean south of the equator, 1872, 56 
