668 
the human foot, 562; the influence of 
town life on stature, 568; ‘ Krao,’ the 
so-called missing link, 575. 
Hartlaub (Dr. G.) on the natural history 
of Socotra and the adjacent highlands 
of Arabia and Somali Land, 227. 
Hartley (Prof.) on the ultra-violet spark 
spectra emitted by metallic elements, 
and their combinations under varying 
conditions, 127. 
Harvie-Brown (J. A.) on the migration of 
birds, 229. 
Heat of the sunshine at the Kew Ohser- 
vatory, as registered by Campbell’s 
method, Profs. H. E. Roscoeand Balfour 
Stewart on the, 414. 
Hedges (K.), fire risks of electric light- 
ing, 653. 
*Helicoidal asymmetry, a modelillustrat- 
ing, and particularly the formation of 
right- and left-handed helicoidal crys- 
tals from a non-helicoidal solution, 
Sir W. Thomson on, 405. 
Hennessey (J. B. N.) on meteoric dust,126. 
Henrici (Prof. O.), Address by, to the 
Mathematicaland Physical Section,393. 
Heredity in cats with an abnormal 
number of toes, E. B. Poulton on, 543. 
Herschel (Prof. A. S.) on underground 
temperature, 45; on meteoric dust, 126. 
Heywood (J.) on the work of the Anthro- 
pometric Committee, 253; on the 
workings of the proposed revised New 
Code, and of other legislation affect- 
ing the teaching of science in elemen- 
tary schools, 309; on the statistics of 
the free public library, Notting Hill, 
604. 
Hick (T.) on the fossil plants of Halifax, 
160; on protoplasmic continuity in the 
Floridex, 547. 
Hillhouse (Prof. W.) on the intercellular 
connection of protoplasts, 535. 
Hooker (Sir J.) on the natural history of 
Socotra and the adjacent highlands 
of Arabia and Somali Land, 227; on 
the exploration of Kilimanjaro and 
the adjoining mountains of Eastern 
Equatorial Africa, 228. 
Hopkinson (Dr. J.) on standards for use 
in electrical measurements, 41. 
Hopkinson (J.)on local scientificsocieties, 
318. 
Hot springs of Iceland and New Zealand, 
C. E. Peek on the, 590. 
*Hudson (C. T.), an attempt to classify 
rotifers, 541. 
Huggins (Dr. W.) on some results of 
photographing the solar corona without 
an eclipse, 346, 
Hughes (G. P.) on the former physical 
condition of Glendale, Northumber- 
land, 498. 
Hughes (Prof. T. McK.) on the erratic 
INDEX. 
blocks of England, Wales, and Ireland, 
136. 
Hull (Prof. E.) on underground tempera- 
ture, 45; on the circulation of under- 
ground waters, 147; on the geological 
age of the North Atlantic Ocean, 494. 
*Human body, the electrical resistance 
of the, Dr. W. H. Stone on, 544. 
Human life, the effect of alcoholic drinks 
on length of, W. B. Robinson on, 620. 
Hume (Rey. Canon), the importance of a 
creed census, with notice of that taken 
in 1881 for the diocese of Liverpool, 
622; the true reason why so many chil- 
dren try to avoid school attendance, 628. 
Hunt (A. R.), on the influence of wave- 
currents on the marine fauna of shallow 
seas, 540; the Borness Cave, Kirkcud- 
brightshire, 561; the action of waves 
on sea beaches, 658. 
Huntington (Prof.) on the ultra-violet 
spark spectra emitted by metallic 
elements, and their combinations 
under varying conditions, 127. 
Huxley (Prof.) on the Scottish zoological 
station, 233; on the occupation of a 
table at the zoological station at 
Naples, 234. 
Hydraulic power, the supply of, E. B. El- 
lington on, 646. 
Hydrocarbons, the decomposing action 
that chloride of aluminium exerts on, 
Profs. C. Friedel and J. M. Crafts on, 468. 
Hydrogen, the alleged direct union of 
nitrogen and, H. B. Baker on, 467. 
Ice calorimeter, a modification of Bun- 
sen’s, Prof. Balfour Stewart on, 432. 
Iceland and New Zealand, the hot springs 
of, C. E. Peek on, 590. 
Indefinite integrals that contain the 
elllptic integrals # and JF, Dr. D. B. de 
Haan on some, 440. 
Injector hydrant for fire-extinction, the, 
by J. H. Greathead, 635. 
Involution of two matrices of the second 
order, Prof. J. J. Sylvester on the, 430. 
Irving (Rev. A.) on the action of sun- 
light on P, O,, 463; Dyas versus Per- 
mian, 503; on the coloration of some 
sands, and the cementation of siliceous 
sandstones, 504. 
Ischia, the island of, preliminary notice, 
by H. J. Johnston-Lavis, of the earth- 
quake of 1881, 499; and of that of 
July, 1883, 501. 
Isomeric naphthalene derivatives, re- 
port on the investigation of, 132. 
Janssen (Dr. J.), note sur les résultats de 
ses observations de l’éclipse total du 
6 Mai, 1883, 4 1’le Caroline (long. 152° 
20’ ouest, Paris, lat. 10° sud), Océan 
Pacifique, 429. 
