464 
GENERAL INDEX. 
* Ye ATS (Dr. J.) on the study of the 
natural divisions of the earth, rather 
than the national ones, as the scientific 
basis of commercial geography, 1887, 
805 
*Yeddo, S. Mossman on the topography 
of, 1872, 211 
Yncas, Clements R. Markham on the geo¬ 
graphical position of the tribes which 
formed the empire of the, 1871, 185 
Yoredale rocks of Wensleydale, W. Horne 
on the occurrence of fish and amphibian 
remains in the, 1873, 84 
-series in the North of England, G. 
A. Lebour on the limits of the, 1875, 
74 
—-rocks of Wensleydale, the occurrence 
of remains of Labyrinthodonts in the, 
J. W. Davis on, 1883, 492 
-series at Leyburn, in Yorkshire, some 
fossil fish-remains found in the Upper 
beds of the, J. W. Davis on, 1883, 492 
York, Glacial sections at, J. E. Clark on, 
1881, 614 
* Yorkshire, East, W. Topley on the phy¬ 
sical geography of, 1866, 67 
* -east coast of, Rev. F. O. Morris on 
encroachments of the sea on the, 1871, 
187 
* -Lias, Rev. J. F. Blake on the, and 
the distribution of its Ammonites, 1871, 
90 
-wolds, Rev. William Greenwell on 
the barrows of the, 1872, I 87 
-Rev. J. F. Blake on additional re¬ 
mains of Pleistocene mammals in, 1873, 
75 
-—— the West Riding of, C. P. Hobkirk 
on the mosses of, 1873, 104 
-T. Lister on birds observed in, in 
former and recent years, 1873, 116 
-East, during the Glacial period, G. 
W. Lamplugh on, 1890, 798 
fYoruba, West Africa, the commercial geo¬ 
graphy of, Gov. Moloney on, 1889, 
660 
Yoshida (H.)and Prof. R. W. Atkinson 
on peppermint-camphor (menthol) and 
some of its derivatives, 1881, 585 
Yostedal Brae glaciers,Charles M.Doughty 
on the, 1864, 193 
Young (Prof. C. A.) on the Princeton 
eclipse expedition, 1887, 590 
* -(Sir G.) on the question, ‘ Is the 
Asiatic emigration to the West Indies 
likely to be a permanent fact in modem 
geography?’ 1872, 215 
-on a proposed reduction to system 
of the ‘ modifications,’ or privileges to 
work overtime, which are granted under 
the Factory Acts to particular trades, 
1877, 185 ' 
-(Prof. G. P.) on solvable irreducible 
equations of prime degree, 1884, 646 
Young (Dr. John) on the distribution of 
the vertebrate remains from the Worth 
Staffordshire Coalfield , 1865, 317 
-(Prof. J.) on the rate of increase of 
underground temperature, 1868, 510 ; 
1869 ,'176 
-notes on the structure of new forms 
of Pteroplax and other Carboniferous 
Labyrinthodonts, and of Jlegalichthys, 
1869, 101 
-- on erratic blocks or boulders , 1873, 
188 ; on science-lectures and organisa¬ 
tion, 495 . 507 
-- Address to the Geological Section, 
1876, 72 ; on the new cases in the 
Hunrerian Museum, 147 
- on the establishment of a marine 
biological station at Granton, Scotland, 
1885, 474 ; 1886. 251 ; 1887 ,91 
-and Prof. Allen Thomson, on the 
contents of the Cumbrae tumulus, 1870, 
155 
-(John) on silicious sponges from the 
Carboniferous limestone near Glasgow, 
1876, 99 
—— (R.), sliding scales and hours of 
labour in the Northumberland coal in¬ 
dustry, 1886, 775 
—— (Dr. S.) on the bibliography of solu¬ 
tion, 1887, 57 ; 1888, 54 ; 1889, 53 ; 1890, 
310 
-—- and Prof. W. Ramsay on the vapour- 
pressure of a substance in the solid and 
liquid states at the same temperature, 
1884, 622 ; on evaporation and dissocia¬ 
tion, 675 
-and Prof. W T . Ramsay on a means of 
obtaining- constant known temperatures, 
1885, 928 ; on certain facts in thermo¬ 
dynamics, ib. 
-and Prof. W. Ramsay on the nature 
of liquids, 1886, 579 
Young's ( Thomas) theory of colour vision, 
the modern development of, Dr. A. 
Kdnig on, 1886, 431 
-J. Tennant on, 1886, 526 
Yourouks of Asia Minor, J. T. Bent on 
the, 1890, 970 
Yttria, the fractionation of, W. Crookes 
on, 1886, 586 
Yttrium group, the rare metals of the, 
T. S. Humpidge on, 1879, 316 
Yule (Col. H.), notes on analogies of 
manners between the Indo-Chinese and 
the races of the Malay Archipelago, 
1870, 178 
—— Address to the Geographical Sec¬ 
tion, 1871, 162 ; on Capt. Garnier’s ex¬ 
pedition up the Camboja, 190 
*-on trade-routes to Western China, 
1875, 197 
- notes on the oldest records of the sea- 
route to China from Western Asia, 1882, 
347 
