Litmus, chemical history of, 233,337.
Literatm'e, miscellaneous, in the Li- brary of the Royal Society, a cata- logue made of the, 334.
Liverpool, tide observations at, 242.
Lloyd (Rev. H.), report on the co- operation of the Russian and Ger- man observers in a system of simul- taneous magnetical observations, 197.
Lloyd (J. A.), approximate'deductions made from about 50,000 observations at the P. Louis Observatory, Mauritius, 232.
Lobster, on the organ of hearing in the, 472.
Lochaber, on the parallel roads of, 127.
London, climate of, on a cycle of eighteen years in the mean annual height of the barometer in, 292.
— — , on the prevailing winds, mean temperature and depth of rain in, 300.
Longitude, new method of determin- ing, 52.
Lubbock (Sir John W.), notice of the late, 264.
Lubbock (Sir J. W.) on a theorem of Fermat, 290.
on an irregularity in the height
of the barometer, 295.
Lungs, on the distribution of the air- passages and the formation of the air-cells of the, 381.
Lushington (E. L.), notice of the late, 177.
Lute, Chinese, on the, 297. Lymphatic vessels, import and office of the, 448.
M'Cormick (R.) on the birds of Kerguelen's Land, 298.
. , geological remarks on Kerguelen's Land, 299. MacCullagh (Prof.), a Copley medal
awarded to, 419. Macclesfield (Earl of), notice of the
late, 418.
Macdonald (Dr.) on the markings of the eel-back dun variety of the horse, 163.
Machines, on the theory of, 318.
Macilwain (G.) on the relation be- tween the respiratory organs of animals and the preservation of in- dependent temperatures, 474.
Maclear (T.), account of the fall of a meteoric stone at the Cape of Good Hope, 134, 210.
, observations made for the veri- fication of the amplitude of La Caille's arc of the meridian, 192.
Madras, magnetic observations made at, 361, 371, 382.
, magnetic and meteorological
observations made at, 396.
Magnesia, salts of, its action on the blood, 285.
Magnetic and electric forces, relation of the, 77.
Magnetic dip and intensity, observa- tions made at sea between Falmouth and the Falkland Islands, 212.
— — between England and Aus- tralia, 212.
declination, horizontal intensity
and inclination, variation of the, ob- served at Milan, 282, 294, 298. 329, 362, 371, 435, 456, 462; at Brus- sels, 329.
inclination and intensity, lines of, in the Atlantic Ocean, 212.
needle, the importance of a more accurate determination of the varia- tion of the, 21.
needle, on the variation of the, observations made in the West Indies, Coast of Brazils and North America, 4.
observations, simultaneous system of, 197.
observations made by H.M. ships Erebus and Terror, 221, 298.
observations made at the obser- vatories at Singapore, at Madras and at Simla, 361, 362, 382, 383.
observatories. Baron Humboldt's proposal for the establishment of, 9, 170.
— — observatories in India, papers from the, 361.
Magnetic-term observations at Milan and Prague, 280, 293, 294, 311, 373, 396, 439, 467 ; at Kerguelen's land, 293.
taken at Hobart Town and Van Dieman's Land, 298.
taken at Singapore, at Madras and at Simla, 371.
Magnetical and meteorological obser- vations, proceedings of the Royal Society relating to, 21, 332, 401.
