408 



ANNUAL OF SCIENTIFIC DISCOVERY. 



Gold in Vermont, 303 

 Governor, improved, for steam-en- 

 gines, 



Graphite, large deposite of, 298 

 GREEN, 11. H., MR., 



GROVE, MR., 118 



Guage, new wind, 182 



Williams' alarm water, 54 



Gutta-percha, manufacture of, 



Haarlem Lake, drainage of, 31 



HALL. PROF. JAS., 281 



HAYES, DR. A. A., 230 



Heat, influence of nervous action on, 339 



" of the sun, 173 



" recent investigations on, 172 



Heliochrome, ISJiepce's memoir on, 167 



Hieroglyphics, discovery in relation 



to, 387 



HILL, MR., 167 



Hillotype, The, 167 



Himalaya and Thibet, 274 



HITCHCOCK, FRES., 251 



HOBBS, MR., 68 



Hoffman's letter to Liebig, 227 



HOPKINS, WILLIAM, 265 



Hoosac Mountain, tunnel, 70 



Human combustion, spontaneous, 255 

 Humates, absorption by the roots of 



plants, 248 

 Humming birds, Gould's collection 



of, 349 

 Hungary, great tunnel in, 37 

 HUNT, ROBERT, 158 

 HUNT, T. S., 306 

 HUTCHINSON, MR. C. B., 

 Hydrobarometer, 183 

 Hydrogen, electro-chemical proper- 

 ties of, 199 

 Illuminating apparatus for light- 

 houses, 103 

 Images, forms produced by lenses of 



different sizes, 144 



India-rubber, vulcanization of, 232 



Insect, new cochmeal, 348 

 Instrument for obtaining correct 



representations from nature, 108 



Iodine, distribution of, 211 



lodo-quinine, sulphate of, 195 



Iron, bars, machine for crimpling, 73 



'' British, production of, 204 



" from Franklinite, 63 



" malleable beams and girders, 61 



" meteoric, passive state of, 203 



" railroad cars, 60 



" smelting, improvements in, 64 



" strength of, 63 



JACKSON, DR. C. T., 



JOULE, MR., 172 



REACH, MR., 77 

 R IRELAND, DR., 



Koh-i-noor diamond, 292 

 Lake, Haarlem, drainage of, 31 

 u Superior, copper inines of, 298 

 Lamps, disinfecting, 104 

 " safety fluid, 103 

 Language, universal musical, 181 

 Lath cutting machine, 88 

 Lead, argentiferous mines of Con- 

 necticut, 296 



Lenses and mirrors, forms of, images 



produced by different sizes, 144 



Lens, rock crystal, found at Nineveh, 17 1 

 Life-boats, improvements in, 69 



Life, microscopic, 329 



" marine, geographical distribu- 

 tion of, 340 

 Light, chemical action of, 191 

 " polarized, detection of soda 



by means of, 196 



li Stokes' researches on, 148 



" Zodiacal, observations on, 369 

 Light-house, establishment of the 



United States, 104 



new illuminating ap- 

 paratus for, 104 

 Liquid glue, 221 

 Livingston, Mr., researches in South 



Africa. 383 



Locomotion, effects of the earth's ro- 

 tation on, 184 

 Locomotive, mammoth, 55 

 " mirrors, 59 

 Locomotives, improvements in, 55 

 Lock controversy, 68 

 Looms, improvements in power, 78 

 Longitude, determination of at sea 



by the altitude of the moon, 370 



Lubin's Extracts, 228 



Lungs, special acid of, 244 



Lustre, Dove's theory of, 149 



Magnesium, preparation of, 202 



Magnetism, heating effects of, 118 



terrestrial, 121 



Magnetic force, physical lines of, 132 



needle, relation between 



and the spots on the sun, 134 

 science, 126 



" telegraph, extension and 



use of, 126 



Manufacturing establishments in 



Great Britain, 111 



Man, effect of swallowing virulent 



substances, upon, 



Manganese, separation of, 213 



Marine boilers, points in the con- 

 struction of, 



Mastodon giganteus, fossil remains of, 310 

 Mechanical energy of the universe, 



reconcentration of, 184 



Melloni on dew, 175 



MELSENS, M., 252 



Mercury, daguerreotypes without, 162 

 new test for, 209 



Meridian, Russian measurement of 



the arc of, 368 



Meteoric iron, passive state of, 2u3 



Meteorites, new, 299 



Meteorological information, 872 



purposes, balloon as- 

 cension for, 376 

 Meter, new protective gas, 102 

 Methylic alcohol, preparation of, 234 

 Miasmata, action of ozone on, 258 

 Microscope, binocular, 153 

 Microscopic life, 329 

 Military tactics, new, 69 

 Minio rifle, 64 

 Mind, state of during sleep, 335 



