PNY Ve Oe FP ae PP By , 
MINERALOGY, 
AN De i O2OsG Y, 
{The numbers refer to the top paging of the text.] 
Asnormat rock masses, 126, 200 ; changes pro- 
duced by their contact with normal masses, 
201; mineral substances composing the, ib. ; 
three orders of, ib. 
Acteonella, a characteristic representative of the 
Gasteropoda in the eretaceous, 182. 
Agate, a variety of silica, 69 ; economical uses 
of, 83. 
Age of rock beds, 126. 
Air-bath, the, 28. 
Alabama, fossil cetacean from the limestone of, 
193. 
Albite, 76. 
Alchemy, the object of, 2; greatly aided the 
progress of chemistry, ib. 
Alembic, construction of the,8. 
Alkalies, sulphates of the, 80; phosphates of the, 
81. 
Alluvium, divisions of, by Hausmann, 194. 
Alps, the, curious marl formation at the foot of, 
188. 
Alum, 81; use of, in dyeing, 85; 
93. 
Aluminium, process of obtaining the metal, from 
clay, 25 ; the sapphire, ruby, and corundum, 
oxydes of, 71. 
America, North, extensive distribution of coal 
in, 155. 
Ammonitide, the, found in the transition slate, 
152. 
Amphibolic rocks, 101, 205. 
Amygdaloidal basalt, 98 ; trap and diabase, 99. 
Analcime, 76. 
Analysis, chemical, 24 ; particular description of 
the process of, 29. 
Anatase, 70. 
Andalusite, 73. 
Andrias scheuchzeri, a well known fossil of the 
tertiary, 191. 
Anhydrite, 79, 85, 106. 
Animal agencies, masses produced by, 195. 
Anoplotherium, the, 191. 
Anthraconite, 104. 
Antimonids; 60. 
Antimony, native, properties and uses of, 59; 
white, 71. 
Apophyllite, 72. 
Apparatus, chemical, for melting solid bodies, 4 ; 
for converting solid and liquid substances into 
gaseous, 6; for investigating matter which is 
gaseous at ordinary temperatures, 9 ; for ob- 
taining gaseous elements, 12—and liquid and 
solid elements, 15; for combining gaseous, 
liquid and gaseous, and solid and gaseous 
alements, 21—and solid and liquid elements, 
alum slate, 
23 ; for chemical synthesis and analysis, 24 ; 
for various forms of drying, 27 ; for mechanical 
separation, 34; chemico-physical, 36 ; miscel- 
laneous, 37; necessary for testing minerals, 
44 ; for measuring the angles of erystals, 52. 
Areometer, use of the, 44. 
Argand’s oil-lamp, 40. 
Argillaceous sandstone, 107. 
Armadilloid animals, fossil forms of, 192. 
Arsenic, native, summary of the mineralogical 
characters and of the uses of, 59 ; arsenical 
pyrites, 66 ; arsenious acid, 71. 
Arsenids, nature of the, and description of seve- 
ral, 60. 
Artesian well, conditions necessary to the pro- 
duction of an, 197; method of boring, and 
difficulties attending it, ib.; strata passed 
through by that at Paris, 198. 
Ascent of veins, theories of the, 133. 
Aspidorhynchus, characters of the, 174. 
Astree, the, abundant in the Jura, 170. 
Augite, 72; a predominant component of dol:- 
rite, 98. 
Axial proportions of crystals, process of ascer- 
taining the, 46; only six essentially differeat 
sets of, 47. 
Bagshot sand, the, 186. 
Balance, the chemical, 36. 
Barometer, the, used to measure the heights of 
mountains, 115. 
Barschwyl, structure of the Jura formation in 
the valley of, 169. 
Baryta, sulphate of, 79. 
Basalt, 98; amygdaloidal, ib.; basait conglo- 
merate, 110 ; especially adapted for the study 
of the columnar forms of rock cleavage, 120 ; 
occupies the most important place among the 
voleanoid rocks, 207; character, forms, and 
position of the basalt rocks, ib. ; distribution 
of, 208 ; basaltic lava, 212. 
Base, chemical signification of the term, 24. 
Basilosaurus, the, 193. 
Baths, water, oil, and air, 27, 28. 
Beaumont, Elie de, his classification of the elder 
strata, 146, 
Beds, nature of, 125; order of succession, plane 
of arrangement, and imposition of, 125, 126 ; 
“normal and abnormal masses of rock beds, 126; 
formations, groups, and systems of rock beds, 
127 ; subordinate, 128 ; formed under the in- 
fluence of the sea, 194. 
Belemnnites, the fossil so called, probably belonged 
to a cephalopod, 172 ; structure of, 172, 173. 
Beryl, 74. 
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