GENERAL INDEX. 



421 



Improved telescope, 



Improvement in distilling mercury, '' 



" in lithography, 



" in marine propulsion, 



" in raising and lowering ^ 



carriage-tops, 



" in the manufacture of iron, 9J 



" in the manufacture of 



white lead, "> 



" in the microscope, 



Improvements in batteries, 



" in distilling water ar.d 



ventilating vessels, 62 

 " in fire-arms, 



in fixed and revolving 



lights, 

 in forging and welding 



iron, 

 " in machinery for the 



manufacture of glass, 46 

 " in photography, 150 



in stone-ware pipes, uo 



" in telegraphs, 



in the manufacture of 



ron, cast, sleepers for railways, 

 chemical constituents of, 

 coating with copper, 



r 



in the preparation of flax, 76 

 j n the production of 



light and heat, 



veneering, 



in wire-rope, 





ft . 



Scoffern's, in refining 



sugar, 



Increase in weight of animals, connec- 

 tion of, with the consump- 

 tion of food, 19-_ 

 " of the nails and hair in man, do5 

 Incrustations in the boilers of steam-en- 



gines, 



India, East, diamond, M 



Indiana, gold in, f2J 



Inflammation, mode of arresting 

 Infusoria of the Dead Sea and River ^ 

 Jordan. ~X 



Ink, printers'. 

 " which resists acids, alkalies, &C-, 



formula for, 



Insects, flowers, &c., application of the 

 electrotype process to the preserva- 

 valion of, * j?l 



Instrument, altitude, 



'' surveying, 

 Instruments, optical, 

 Integrating anemometer, 

 Integuments of animals, changes ol, 

 Intensity of the electric spark, 

 Interior of the eye, direct exploration of, 

 Iodine and bromine in coal, 



(: existence of. in fresh- water plants, 1 



" general distribution of, 



" in beet-root, 



" method of procuring, on coast 



farms, 



" new test for, 

 Iron, alloys of, and manganese, 

 " and steel, method of producing, 

 " application of, to railway struc- 

 tures, 



" as a material for ship-building, 

 { casks manufactured of, ^3 



11 cast, coating for, "?>, \>i 



36 



179 



" deposits, Lake Superior, 



" improvement in forging and welding,bt 



'' improvement in the manufacture of, 9 



" ores, magnetic, smelting of, 



" protection of. from oxidation, 



" pyrites, arsenic in, 179 



" stirrup, new, 



" vessel, effect of shot and sheds on, 94 



" wrought, machine for hammering, 33 



Island, elevation of. in Lake Superior 255 

 " ' of Newfoundland, subsidence of, 2->j 



Isothermal lines of the globe, Dove's 



JACKSON%R. C. T., 93,203,307,325 



Jackson's report on Lake Superior, 



notes from, 

 JAMES, CAPT., 



Jar, Leyden, dynamic phenomena of, 

 Jet from the blow-holes of whales, 



cause of, 



JEWETT, PROF. C. C., 

 JOHNSON, PROF., 



PROF. W. R., 

 JONES, MR., 

 Jordan, infusoria of, 

 Jupiter, spots on, 

 Kamptulicon, 

 KEMP, ALEXANDER, 

 " DR. GEORGE, 

 KENNISH, MR., 

 Kentucky, blind animals of the Mam 



moth Cave of, 



Lower Blue Lick Springs of, 229 

 , MR., 73 



KIMBALL & RICE. 



KXOWLES, SIR F. C., 91 



Koh-i-noor, 307 



LAIRD, MACGREGOR, 



Lake, Great Salt, 331 



Nicaragua, monuments on the 



islands of, 

 Ngami, 



Superior, elevation of an island in, 255 

 copper, structure of, 

 iron deposits, 293 



notes from . Jackson's 



report on, 300 



Lakes, salt, origin of, 



LAMING. MR., * 



Lamp-lighting by electricity, 

 LAMPERIERRB, M., 

 Lamps for burning-fluids, 

 T IVY IT 



LiAMr, Hi. _ n 



Lapland, observations in, ^ 



Lard and rosin, peculiar compound of, 2-Jb 



LASSELL. MR.,' 



LATOUR. M., 



LAURENT, M.. 



Laws and origin of the aurora borealis, llo 



LEA. ISAAC, 



Lead and copper, American. 



LEBOURDAIS. M.. 



LE CONTE, PROF. J. L., 



LEIDY, DR. J., 



Length, extraordinary, of the seconda- 



ry spark. 

 " proper, of lightning conductors, 130 



" 

 " 

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