I N D E X . 
Allport, S., cited 37,57, 
Amygdaloidal structure in aporhyolites, 
characters of 
Analyses, chemical 33-34, 
Aporhyolites, character and distribution of. 42- 
Augite-porphyrites, character and distribu- 
tion of 69- 
Axiolitic structure in aporhyolites, charac- 
ters of 
Bailey, L. "W., cited 
Bayley.W. S., cited 09, 
Bell, Robert, cited 
Blandy, J. F., cited 17, 27, 
Bonney, T. G., cited 31, 64, 
Bornemann, T. G., cited 
Brewster, David, cited 
Brogger, W. C, cited 
Brongniart, cited 
Butler, G. W., cited 
Callaway, cited 
Cambrian rocks, description of 31- 
Chemical analyses 33 -34, 
Clark, John M., acknowledgments to 
Cole, G.A.J. , cited 
Copper ore, occurrence of 25 
Cross, Whitman, cited 38, 
acknowledgments to 
Dana, J. D., cited 37, 
Dana, E. H., cited 
Daniells, analysis by 
Daubree, A., cited 
Devitrification, proofs of 57- 
Diller, J. S., cited 47, 
Dolomieu, cited 
Ells, It. W., cited 
Evans, Lewis, cited 
Feldspar in quartz-porphyries, characters of 39- 
Feldspar in aporhj olites, characters of 44- 
Frazer, Persifor, cited 16-17, 24, 25, 26, 78, 
Fi itsch and Peiss, cited 
Futterer, Karl, cited 
Geiger, H. E., cited 
Genth, F. A., chemical analyses by. . . 34, 61, 62, 
Gerhard, cited 
vt il' 1 t-rsleeve, cited 
'Grant, U. S., acknowledgments to 
cited 
Groddeck, A. von, cited 
Hague, Arnold, cited 37, 
Harker, Alfred, cited 46, 
Haworth, E., cited. 47, 
Hayden, H. H., cited 24, 
82 
68 
58 
58 
47 
36 
56 
64 
34 
78 
14 
56 
-27 
47 
50 
68 
68 
78 
58 
58 
86 
36 
86 
14 
40 
45 
82 
57 
45 
• >•_> 
78 
36 
38 
47 
86 
til 
61 
47 
86 
25 
Page. ' 
Henderson, C. H., cited 25 
analyses by 61 
Hitchcock, cited 86 
Hobson, cited 68 
Hunt, T. Sterry, cited 17, 24, 25, 82, 83, 86 
Hidings, J. P., cited 31, 
3'< , 43, 47, 48, 51, 52, 55, 56, 61, 68 
acknowledgments to 50 
Irving, P. D., cited 31, 47, 55, 57, 60, 86 
Jackson, cited 86 
Jacks Mountain, geology of 21, 42 
Judd, J. W., cited 37, 68 
Kalkowsky, E., cited 59 
Keith, Arthur, cited 21, 22, 28, 29, 86 
Keyes, C. P., cited 32 
Kirwan, Pichard, cited 37 
Klockmann, F., cited 53, 59 
La Croix, A., cited 59 
Lang, H. Otto, cited 59 
La Vallee-Poussin v Ch. de, cited 55, 57, 60 
Lehman, A. E., superior topographic maps 
of South Mountain prepared by. . . . .18 
Lehman, J., cited 45, 64 
Lesley, J. P., cited 17-18, 21, 82 
Levy, Michel, cited 36 
Lieber, cited 86 
Lindgren, Waldemar, cited 47 
Link, cited 59 
Lithophysal structure in aporhyolites, char- 
acters of 55 
Loewmson-Lessing, F., cited 57 
Lossen, K. S., cited 59 
Ludwig, P., cited 59 
Mattbew, cited 86 
McCreath, A. S., analyses by 61 
Melapbyres, character and distribution of. . 69-78 
Mica of aporhyolites, characters of 46 
Micropegmatitic structure in aporhyolites, 
characters of 55 
Microx>oikilitic structure in aporhyolites, 
description of 47-51 
Milch, P. L., cited 45,64 
Monterey district named and denned 20 
ore deposits of 25-27 
Naumann, cited 36 
Nordenskjbld, Otto, cited 38, 47, 57, 60 
Osann, A., cited 59 
Perlitic structure in aporhyolites, charac- 
ters of 55 
Phillips, J. A., cited 31,68 
Piedmontiie in quartz-porphyries, character 
and distribution of 41-42 
123 
