INDEX TO VOL XXVIII. 
American meteorites described. 265. 
American I'liilosopliical Society. 317 
Ami, H. M., Bibliography of George 
M. D*wson, 76 ; Billings and his 
bibliography. 132 ; 398. 
Andrews, C. W., Recently discov- 
ered extinct vertebrates from 
Egypt., 390. 
Announcement of the Theory of 
Evolution, 316. 
Another Kansas meteorite, 334. 
Antiquity of the races of manljind, 
250. 
Archean and Algonician, changes in, 
by Van Hise, 385. 
Archean of the Alps, 189. 
Barris, W. H., 64. 
Barris, W. H., (portrait), C. H. 
Preston, 358. 
Basic rocks of Northeastern Mary- 
land, A. G. j^eonard, 135. 
Bather, F. A., What is an Echino- 
derm? 257. 
Bather, F. A., Echinoderma. S89. 
Becker, Geo. F., Report on the Ge- 
ology of the Philippine islands, 
126. 
Beede, J. W. 
Beede. J. W., The age of the Kan- 
sas-Oklahoma Red-beds, 46. 
Brigham, A. P., A Text-book of 
Geology, 59. 
Calvin, S., Iowa geological survey, 
258. 
Chamberlin, T. C, 2G6. 
Coal and metal miners pocket book 
of principles, rules, formulas, and 
tables. 126. 
Coal fields around Tse Chou, China. 
N. F. Drake, 260. 
Contributions to Mineralogy and 
Petrography, Sheffield Scientific 
School, I'enfield and Pirsson. 31*2. 
Cleveland water supplv tunnel, S. 
T. Pierce, 380. 
CORRESI'OXnKNCE. 
Billings and his Bibliography. I'l. 
M. Ami, 132. 
Heavy rains and possible volcanic 
action in Nicaragua, .T. Craw- 
ford, 328. 
Recent decline in lake Nicaragua. 
B. Shimek. 396. 
Recent submergence of the Asiatic 
continent, G. F. Wright. i:!1. 
Second edition of the Geological 
map of West Virginia, I. C. 
White, 382. 
When was the Mississippi river 
valley formed'* I'. J. Farns- 
worth, .394. 
Crawford, J., Heavy rains and 
possible volcanic action in Nic- 
aragua, 328. 
Davis, W. M., 399. 
Daly. R. A., 134. 
Dawson, G. M., Geological Survey 
of Canada, 321. 
Dawson, George Mercer. (sketch 
with portrait, by B. J. H.), 67. 
Deecke, Dr. W., Geologischen 
I'\ihrer durch Companien, 125. 
Department of Geology in the Na- 
tional Museum, 107. 
Difficulties in deep coal mining, 334. 
Dodge. R. K., New York Academy of 
Sciences. 329. 
Dragons of the air, H. G. Seeley, 
323 
Drake. N. F.. Coal fields around Tse 
Chou. China, 260. 
Dresser. J. A., On the petrography 
of Shefford mountain, 203. 
Earliest traces of man, 265. 
Echinoderma, F. A. Bather, 389. 
Editor;al Comment. 
Announcement of the Theory of 
Evolution, 316. 
Edward Waller Claypole, 247. 
Fundamental changes in the Ar- 
chean and Algonkian as under- 
stood by Prof. Van IHse of the 
I'nited States Geological Sur- 
vey, 385. 
Guide to the Geologv of Niagara 
falls. 56. 
Laboratory and lecture mothoda 
in geology at the State Univer- 
sity of Iowa, 54. 
River I'rofiles. .')(;. 
Supposed recent submergence of 
Siberia. 53. 
The American Piiilosophical So- 
ciety. 317. 
The antiquity of the races of 
mankind. 250. 
'I'he Archean of the Alps, 1 89. 
The Department of (Jeolo^y iu 
tlie National Museum. 107 
The origin of Australia') iron 
oi'es. 24.S. 
l?dwnrd \\'nlI(M- Claypole 247. 
