REVIEWS 
Geological Expedition to Brazil and Chile, 1905-1909. By J. Woop- 
worTtH. Bull. Mus. of Comparative Zodlogy, Harvard Col- 
lege, Vol. LVI. Shaler Memorial) Series) Nos 12) 2 panege 
figs. 37, pls. 37. Cambridge, Mass., 1912. 
In commemoration of the long and distinguished services rendered 
to Harvard University by the late Dean Shaler, the alumni of that 
institution raised an endowment of more than thirty thousand dollars 
for the purpose of conducting appropriate investigations and publish- 
ing the results as a tribute to his memory. As the evidence of past 
glaciation was one of the lines of study which particularly commanded 
Professor Shaler’s interest, and as he long ago anticipated the discovery 
of evidences of glaciers in the conglomeratic formations of the closing 
Paleozoic era, it seemed eminently fitting that a portion of the memorial 
fund be expended for further research on the Permian conglomerates of 
southern Brazil, the glacial origin of which was suggested by Dr. Orville 
A. Derby in 1888. This report is the result of an expedition organized 
for that purpose. 
Following the itinerary and narrative of the expedition, there is 
given a brief outline of the geology of south Brazil based chiefly upon the 
publications of Derby and of Branner and the special report on the coal 
area by I. C. White. The formations which enter into the structure of 
southern Brazil may be grouped into the following terranes: (1) The 
belt of igneous and metamorphic rocks of the coast, including the Serra 
do Mar region, frequently classed as Pre-Cambrian and certainly 
Pre-Devonian. (2) The Devonian, including the sandstone cuesta of 
the Serra das Furnas and the overlying fossiliferous shales of Ponta 
Grossa in the state of Parana. (3) The Permian series, including con- 
glomerates and tillite beds as well as sandstones and shales, the latter 
coal-bearing in the south. (4) The Triassic sandstones and trap sheets, 
the latter making the escarpment known as the Serra Geral and its 
topographical equivalents elsewhere. (5) The Tertiary fresh-water 
deposits of the upland, and possibly along the coast. (6) The Recent 
deposits along the coastal borders, now slightly elevated. 
The declared purpose of the expedition having been the investiga- 
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