Contents, 
._ sifor Frazer, 189; The Derivation of the Rock name ‘An- 
orthosite,”’ H. P. Cushing, 190; New York Academy of Sci- 
ences, E. O. Hovey, I9g1. 
IRERSONALS AND? SCIONTINIC. NEWSi's- « cekies ce lied debicwsbevdenes 
APRIL NUMBER. 
A REVISION OF THE BryoOzOAN GENERA DeKAyIA, DEKAYELLA AND 
* HETEROTRYPA OF THE CINCINNATI Group. Edgar R. Cuim- 
ings. ye Ee 8 6 | A a Se cae 
GroLocicaL History OF THE CHARLES RIvER IN MASSACHUSETTS. 
Preatrick’ G. Clapp.* |Plates -XUII-XVI.].....6..6000..5. 
GroLocicaL History oF THE HEMATITE IRON OrES OF THE ANT- 
WERP AND FowLer Bett IN New York. II’. O. Crosby 
Notes Upon THE MaucH CHUNK OF PENNSYLVANIA. John J. 
PU DEVIDINSUIDUIE Seen ths RRM LM cig 8 he soho drew aT alae 
Epiror1AL COMMENT. 
ee eer Bas ers COMLCTAIY 39 2 « wrdrsctc 6 wip welsh akin ta to 
REvIEW OF RECENT GEOLOGICAL LITERATURE. 
Acrothyra and Hyolithes, a comparison, G. F. Matthew, 251, 
Hyolithes gracilis, and related forms from the Lower Cam- 
brian of the St. John Group, G. F. Matthew. 251; A Back- 
ward Step in Palaeobotany, G. F. Matthew, 251; Om de 
senglacial og postglacial nivaforandringer i kristianiafeltet, 
W.C. Brégger, 252; Catalogue of the types and figured spec- 
imens in the paleontological collection of the American Mu- 
seum of Natural History, R. P. Whitfield and E. O. Hovey, 
255; Notes on the Raised Coral Reefs in the Islands of the 
Riukiu Curve, S. Yoshiwara, Geological Structure of the 
Riukiu (Loochoo) Curve, S. Yoshiwara, 253; The Journal 
of Geography, 254; Records of the Past, 254; Wonderland, 
1¢02, 254; The Chronological Distribution of the Elasmo- 
branchs, O. P. Hay, 255; The Geology of the Northeast 
Coast of Labrador, R. A. Daly, 256 
MontTHLy AvuTHor’s, CATALOGUE OF RECENT GEOLOGICAL LITER- 
ATURE ...., ANE PL ee TO ee re ge ee ee 
MAY NUMBER. 
A SKETCH oF THE Historica, GeoLtocy oF ESMERALDA County, 
NevaDa tee Pare. PPlate VIET oe coke nce qesaes 
Some CrysTALLINE Rocks or SOUTHERN CALIFORNIA. Oscar H. 
NN es sa cade W Le eile nat nol eh ins wsels wd od o'c 
PALEONTOLOGICAL SpecuLATions, III. L. P. Gratacap.......... 
Note oN A TERTIARY TERRANE New IN Kansas GeoLocy. George 
LP Oe Og SR es A ir a ere 
New Species oF Fossits FROM THE SuB-CARBONIFEROUS Faced OF 
NorTHEASTERN Missourr. R. R. Rowley. [Plate XVIII.].. 
193 
256 
260 
