Review of ReGent Geolofjlcal Literature. 387 
Report F, by D. B. Dowling, is noted elsewhere in this number. 
Report J, in 157 pages, with a map, is by R. W. Ells, on a portion of 
the Province of Quebec comprised in the southwest sheet of the "East- 
ern Townships" map (Montreal sheet), with a chapter by Frank D. 
Adams, on the Laurentian north of the St. Lawrence river. The forma- 
tions range in age from Laurentian to Devonian, with thick deposits of 
glacial and modified drift, qnd. on the great plain of the St. Lawrence, 
marine Champlain clays and sand. In an appendix (pages 113-157J), 
Henry M. Ami gives preliminary lists of the organic remains in the bed 
rocks of this area, from the Potsdam sandstone to the Devonian. 
Report R, of the section of Chemistry and Mineralogy, by G. Chris- 
tian Hoffmann, comprises 68 pages; and the report (S) of Mineral Sta- 
tistics and Mines, for 189,3 and 1894, by E. D. Ingall and H. P. H. 
Brumell, 187 pages. The total mineral production of Canada is tabu- 
lated as $21,000,000, very nearly, for each of these years. Gold, silver, 
lead, asbestos, gypsum, coal, and petroleum, increased in the amount 
and value produced : while copper, iron ore, mineral water, natural gas, 
salt, and pottery, decreased. The production of nickel increased from 
four million to five million pounds, approximately, but with a decrease 
of its aggregate value. w. u. 
The. Formation of the Quaternary Deposits of Missouri. By James 
E. Todd. (Missouri Geological Survey, vol. x, pp. 111-217, with plates 
xii-xxii, and figures 20-24 in the text; 1896.) Glacial drift is mapped as 
covering the northern two-fifths of the state, mainly extending south 
to the Missouri river, but leaving an unglaciated tract several miles wide 
next north of the Missouri and west of the Mississippi to distances of 
about ninety miles above their confluence. In the central part of the 
state, however, the glacial drift extends across the Missouri river along 
a distance of nearly seventy-five miles. Loess, high terraces, and allu- 
vium, are mapijed and described along the Missouri river and in the 
Mississippi valley southward to the vicinity of St. Louis; but the pres- 
ent report does not treat of the contemporaneous residuary and alluvial 
deposits of the more southern pai't of Missouri, nor of the loess and 
other Quaternary formations along the Mississippi south of St. Louis. 
. The till, weathered to a yellowish brown color near the surface, but 
having a leaden blue color below, usually holds only few boulders and 
smaller rock fragments ; but nearly everywhere it contains some from 
remote sources, namely, the crystalline rocks of Canada and Minnesota. 
In certain localities Prof. Todd finds all the rock fragments to be appa- 
rently of remote northern origin. Near the north line of Missouri, the 
till sometimes is almost 200 feet thick; but southward it rarely exceeds 
40 feet, and is frequently less than five feet. Indeed, over considerable 
areas it exists only in small and shallow patches. It thus ceases toward 
the margin of the drift, which usually comprises nothing more than 
sparsely scattered boulders. Glacial strite are found well preserved on 
the limestone strata near St. Joseph, in Kansas City, and in other lo- 
calities, occurring almost at the extreme limit of the drift. 
