126 The American Geologist. Auguet, isse 
//. Proceedings of Scientific Societies. 
.Trans. Wis. Acad. Sci. Arts and Letters, Vol. viii, 1888-1891, contains: 
Some Additional Evidences bearing on the Interval Between the Glacial 
Epochs, T. C. Chamberlin; On some Metamorphosed Eruptives in the 
Crystalline Rocks of Maryland, Wm. H. Hobbs; Notes on a little known 
Region of Northwestern Montana, G. E. Culver; On a new Occurrence 
of Olivine Diabase in Minnehaha County, South Dakota, G. E. Culver 
and Wm. H. Hobbs; Origin of the Iron Ores of the Lake Superior Re- 
gion, C. R. Van Ilise; On the Correlation of Moraines with Raised 
Beaches of Lake Erie, Frank Leverett. 
Proc. Acad. Nat. Sci. Phil. (Jan. to Mar.) Remarks on the Quantity, 
Rate of Consumption, and Probable Duration of North American Coal, 
and the consequences to air-breathing animals of its entire combus- 
tion, Isaac J- Wistar; The development of the shell in the coiled stage 
of Baculites compressus Say, Amos P. Brown. 
///. Papers in Scientific Journals. 
Ottawa Naturalist, 1/fl^. On Natural Phosphates. J.L.Willis. June. 
On the Sequence of Strata forming the Quebec group of Logan, with 
remarks on the fossil remains found therein. H. M. Ami. (Abstract.) 
School of Mines Quarterly, April. Topographical Survey of New 
York State, W. P. Trowbridge; Analysis of Chromite, Walter and 
Vulte; Fossil Forests of the Yellowstone, W. H. Weed. 
Nat. Geog. Mag., Vol. iv, contains: Studies of Muir Glacier, Alaska, 
Harry Fielding Reid: Toe Mother Maps of the United States, Henry 
Gannett; An Expedition through the Yukon District, C. Willard Hayes, 
(to page 163). 
Geol. Mag. April. The Upper Trias of St. Cassian, Tyrol. Miss M. 
M. Ogilvie; On a new form of Discinocaris from Bohemia, Ottamar 
Novak; A new British phonolife, F. H. Hatch; Drift Coal in sandstone, 
G. W. Bulman; On the ash slates of the lake district, W. M. Hutchings; 
The age of the Himalayas, W. T. Blanford; Replies to various criticisms, 
J. F. Blake. 
May No. On a Neuropterous insect from the Lower Lias, H. Wood- 
ward: The lamprophyres of the north of England, Alfred Harker; How 
to take impressions of fossils, J. G. Goodchild; On the origin of earth- 
(luake sounds, C. Davison; On the ash slates of the lake district, W. M. 
Hutchings. 
June No. On the Devonian rocks of south Devon, A. R. Hunt; Per- 
mian in Devonshire, W. A. E. Ussher; The mammoth and the glacial 
drift, H. H. Howorth; On Ammonites jurensis, S. S. Buckman; The re- 
vised theory of glaciation, G. W. Bulman. 
Am. Jour. Sci., Fehnuiry No. Bear River formation, a series of strata 
hitherto known as Bear River Laramie, C. A. White; Stratigraphic posi- 
tion of the Bear River formation, T. W. Stanton; Iron ores of the Mar- 
quette district of Michigan, C. R. Van Hise; Illustration of the flexibil- 
ity of limestone, A. Winslow; Central Massachusetts moraine, R. S. 
Tarr; Proofs that the Holyoke and Deerfield Trap-sheets are contem- 
poraneous Hows, and not later intrusions, B. K. Emerson. 
