INDEX. 



1267 



Limestone, pore space in, amountof 124 



solution of 539-540 



strain in, shown by quarrying 598 



thickness or mass of, contained in earth's crust. 941 



transformation of , to silicate rocks 823 



weathering of, features of _ 530 



losses by 513,523,524 



Limestone regions, solution and precipitation of cal- 

 cium carbonate in 539-540 



Limonite, alterations and alteration products of . . . 373, 



386,396,400 



chemical and physical constants of. 198, 231, 842 



formation of, chemical reactions showing _ 826, 



830,843,846 



occurrence and character of.. 232-233, 842-843 



sources and modes of formation of 214, 



215, 216, 226, 227, 229, 232-233, 234, 242, 244, 

 268, 282, 303, 309, 328, 371, 376, 377, 378, 379, 

 380, 382, 384, 385, 356, 387, 390, 391, 398, 402, 

 404, 406, 467, 550, 623, 624, 826, 830, 842-843 

 Lincoln, A. T., aid by, in mathematical computa- 

 tions 29,208,210 



Lincoln, A. T., and Kahlenberg, Louis, on silicates 



in solutions. 67,87,115 



Lindgren, Waldemar, figure cited from 1156 



on calcium carbonate, solubility of 78 



on deposition of cassiterite _ 1127 



on gold deposits of the Sierra Nevada 1084, 



1094, 1095, 1096, 1137, 1170, 1184, 1185, 1202, 1204 

 on heat at contact of intrusive with sedimentary 



rocks 1054 



on hydrogen sulphide in mines of Sierra Nevada. 1107 

 on hydrous sulphate of aluminum in gold veins 



of California 1142 



on igneous origin of certain ore deposits 1049-1050 



on metasomatic changes in fissure veins. 602, 1069-1070 



on minerals accompanying ore deposits 1055-1066 



on ore deposits, genesis of -. 1111 



on origin of ores by metasomatic replacement. . 1047 



on silicates in fissure veins 1130 



on tellurides associated with gold deposits.. 1119,1174 

 on titanic iron-ore deposit at Iron Mountain, 



Wyo _ 1044 



Lippincott, J. B.,on flow of water through sands. 142-143 



Liquid-filled cavities in rocks, cuts showing 620, 746 



sizes of 658 



Liquid solutions, formation of 59 



Liquids and solids, graduations between 81 



Lithium, percentage of, in earth's crust 936,1002 



Lithium oxide, percentage of, in earth's crust 938 



Lithosphere, chemical composition of ._ 933-947 



definition of term 31,932 



deformation of _ 1005-1014 



volume of 932-933 



See also Earth's crust. 

 Liversidge, A., on precipitation of gold by sulphide 



minerals 1096-1098 



Loams, pore space in 126 



Lobworms, effect of work of, on soils 448 



Loess of Mississippi Valley, character of 433,501 



Logan, W. E.,on graywackes of Lake Superior re- 

 gion 881-882 



London shaft, Mineral Point, Colo., cross section of 



vein near 1135 



Lord, Eliot, on the Comstock lode 1224 



on water in Comstock lode. 428 



on weathered dikes 527 



Page. 

 Los Angeles River, ground water feeding, flow of. 142-143 

 Lossen, K. A., on zonal arrangement of metamor- 

 phic minerals peripheral to intrusive 



masses... _ 719 



Loughridge, R. H., on proportion of soluble material 



in soils to degree of comminution ... 495 



Low lands, decomposition of rocks in . _ 502-503 



Lugworms, effect of work of , on soils _ 448 



McCaffery, R. S., and Yung, M. B., on copper de- 

 posits of New Mexico. _. 1056 



McGee, WJ, on arkose _ _ 497 



on quartz-feldspar sands _ 873 



on rock disintegration by changes in tempera- 

 ture _ 439 



miscibility of, with water. _ 114-115 



water derived from _ 1065-1069 



segregation, ores produced by 1043-1052 



ores produced by, alterations of 1237 



Magnesia in earth's crust 934,937,938 



in grain and straw __ _ 454 



in salts of sea water _ _ 942 



See also Magnesium oxide. 

 Magnesite, alterations and alteration products of. . . 243- 



244,386 



chemical and physical constants of 198, 237 



occurrence of. _ __ 243 



sources and modes of formation of 243, 304, 



309, 349, 350, 366, 371, 378, 383, 384, 

 387,388, 390, 391, 396, 397, 398, 399 

 Magnesite and corundum, alterations and alteration 



products of ._ 381,400 



Magnesite and diaspore, alterations and alteration 



products of . 381,401 



Magnesite and diopside, alterations and alteration 



productsof ._ 382,408 



Magnesite and gibbsite, alterations and alteration 



productsof _ 383,401 



Magnesite, gibbsite, microcline, and siderite, altera-. 



tions and alteration products of . . . 389, 401 

 Magnesite, gibbsite, orthoclase, and siderite, alter- 

 ations and alteration products of 389 



Magnesite, microcline, and siderite, alterations and 



alteration products of 389,401 



Magnesite, orthoclase, and siderite, alterations and 



alteration products of 389, 401 



Magnesite, sahlite, and siderite, alterations and 



alteration productsof 391,408 



Magnesium in corals and marine shells 798 



in earth's crust 934,936,992-994 



in limestones- _ 800-801,802 



in ocean 944 



in sea salt 943 



in soils, agricultural benefits of. _ 92 



occurrence and combinations of 992-996 



precipitation of, in the sea, discussion of 788-789 



replacement of, by calcium, phenomena of . . . 279-280 

 Magnesium bromide, amountof, in the ocean and in 



sea salt __ 943 



Magnesium carbonate removed from soil annually. 486 

 Magnesium chloride in the ocean and in sea salt . . . 943 



Magnesium oxide in earth's crust 934,937,938 



in ocean and in salts of sea water 942 



Magnesium sulphate in ocean and in salts of sea 



water __ 943 



reversible reaction of, with sodium carbonate.. 88 



