Index, Volumes I-XXXVI. 
*33 
Tourmaline, and Tourmaline Schists 
from Belcher Hill, Colo., H. B. 
Patton. (abs.). xxii, 251; Occur- 
rence in Calif. C. R. Orcutt, 
(abs.), xxii, 165; Chemical com- 
position of. Penfield, and Poote. 
(rev.), xxiii, 325; Constitution of, 
F. W. Clark, (rev.), xxiv, 318; 
Contact zones near Alexandria 
bay, N. Y., C. H. Smyth. Jr., 
xxix. 377. 
Traces of the Ordoviciart system 
on the Atlantic coast. G. F. Mat- 
thew, (rev.), xviii, 50. 
Tracks of invertebrate animals in 
Paleozoic rocks, D. W. Dawson, 
(rev.), vii, 55. 
Training, the, of a geologist. J. C. 
Branner, v, 147; And work of a 
geologist, C. R. Van Hise, xxx, 
150. 
Transcontinental, series of gravity 
measurements, Results of. G. R. 
Putnam, (rev.), xv, 388; Notes on 
the gravitv determination report- 
ed by Putnam. G. K. Gilbert, 
(rev.), xv, 388. 
Transvaal, gold deposits, xviil, 
400. 
Trans-pecos country, Texas, R. T. 
Hill, v, 76. 
Traquair, Dr., Relations of relics 
of fossil fishes, (rev.), il, 133; 
Silurian fish. (ed. com.), xxv, 
244. 
Travels amonest the erreat Andes 
of the equator, E. "Whymper. Ix, 
343. 
Traverse of northern Labrador, A 
P. Low. (rev.), xxii, 326. 
Travertine and Siliceous Sinter 
from the Hot Springs, W. H. 
Weed. (rev.), vii, 201. 
Treadwell mine. Alaska. G. M. 
Dawson, iv. 84; Microscopical 
character of the ore. F. D. 
Adams, Iv, 88. 
Treatise, on rocks, rock weather- 
ing and soils, G. P. Merrill. (r°vl), 
xx, 273; On ereology, A. de T. ap- 
parent, (rev.), xxv, 120; On zo- 
oloe-v. K. R. Lankester, (rev.) 
xxviii, 3RD. 
Trelease. W., (o.s.n.). xxxii, 400. 
Tremadoc fossils. J. F.. Pompeckj. 
(rev.), xviii, 264. 
Tre«r«atis, riew species, E. O. Ul- 
rich, iv, 21. 
Trerr , .atob r »lus Articulate brachio- 
r>od of the inarticulate order. G. 
F. Matthew. (>-pv.), 396. 
Trenton, Limestone as an oil rock, 
(p.s.n.). I, 133; Source of petrol- 
eum and gas. K. Orton. (rev.), 
v, 388; suppled fossil fish. (ed. 
com.), viii, 178; New fossils from, 
Winehell and Schuchert. ix. 284; 
Of the Winnipeg basin. J. F. 
Whiteaves. (rev.), x, 124: Tri'o- 
bitos in. W. P. Blake, xiv, 1^3: 
Gravels and elacial man, a dis- 
cussion, xx, 199. 
Treub, recent veeetation, of Kraka- 
toa, (p.s.n.). Ill, 63. 
Triarthrus, beckii, W. D. Matthew, 
(rev.), xii, 193; Further observa- 
tions on the ventral structure of, 
C. E. Beecher, xv, 91; Beckii. C. 
E. Beecher. iii, 38; Appendages 
of the Pygidium (rev.), xiii, 428. 
Trias, plants, L. F. Ward, (abs.), 
viii, 192; In northwest Texas, J. 
Marcou. x, 369; And Jura of the 
western states, A. Hyatt, (abs.), 
xiii, 148; And Jura of Shaska 
county. Calif., J. P. Smith, (abs.), 
xiv, 200. 
Triassic, In America, (Am. com.), 
ii, 257. 261 : Of the Connecticut 
Valley, W. M. Uavis, (rev.), iv, 
112; Of Connecticut. Davis and 
Lopr-r. (rev.), viii, 118; Of Mass. 
B. K. Emerson, (rev.), viji, 185: 
Traps of Nova Scotia. t. V. 
Markers, v, 140: Flora of Rich- 
mond. Va„ J. Marcou. v, 160. 
Tribunal of final appeal should he 
independent of all influence, (ed. 
com.), xx, 54. 
Tribute to A'ictoria, (p.s.n.), xxvll, 
198. 
Trilobite, n"w in North Wales. H. 
Woodward, (rev.), ii, 132; Visual 
area. J. M. Claike. (rev.). Iii, 146; 
Of the Salt Rana-e, India. W. 
King, (rev.), v, 183; A. W| Vog- 
fles' ix, 377; Genus ampyx, A. W. 
Vogdes. xi, 99; Triarthrus Beckii. 
W. D. Matthew, (rev.), xii, 193; 
Larval forms from the lower Hel- 
derberg, C. E. Beecher, (rev.), 
xii, 334; Antennae and other ap- 
pendages. C. E. Beecher. xiii, 
38: 428: Revision of Silurian, F. 
Schmidt, (rev.), xiii, 428; In the 
oil rock horizon In Wis., W. P. 
Blake, xiv, 133; de l'Ordovicien 
d'Ecalgrain. J. Bergeron, (rev.), 
xv, 262: New. from Arkansas 
lower Coal Measures, A. W. Vog- 
des. (rev). xvi, 262: Larval 
Structure and anpendages of 
Trinucleus. C. E. Beecher. (rev.). 
xvi, 259; Punnosed discovery of 
the Antennae by Linnaeus in 
1759. xvii, 303; New Ordo' Irian, 
J. Bersreron. (rev.), xvii, 395; Up- 
r>^r Devonian in Moravia, F. 
Smycka, (rev.), xvii, 396; Sys- 
tematic position of. J. S Kins's- 
ley, xx, 33; In Sweden, J. C. Mo- 
berg, (rev.), xxiv. 59; Visual or- 
rn?, (rev.). Cr. Lindstrom xxvii, 
268; Of Sweden. J. C. Moberg, 
(rev.), xxxi, 316. 
Triracromerum. F. W. Cragin, 
viii, 171 . 
Trlonyx f'om Malta, Lydekker, 
(rev.), vii, 381. 
Tristan d'Acunha, rocks of, With 
their bearing on the question of 
Hi,- oerma nence of 1 •■' a n basins, 
E. H. L. Schwarz, (rev.), xxxvi, 
126. 
Trowbridge, W. P., (obit.), x, 19S. 
Troost manuscript and J. Hall. J. 
M. Clarke, xxxv, 256; Geological 
