Reviezv of Recoit Geological Literature. 187 
may be summarized as follows: The eastern Piedmont streams have 
been superimposed from the formerly more extensive coastal plain 
cover, the date of their superimposition being probably post-Lafayette. 
The coastal plain cover cannot be traced west of Parr's ridge, the 
westward drainage being^ superimposed upon the Newark formation. 
Parr's ridge represents a minor divide on the Schooley peneplain and 
has been the divide between Monocacy and Chesapeake bay streams 
since Jura-Tria? times. It is being shifted eastward because of the 
greater activity of the Monocacy drainage. 
Very little work has previously been done on river development 
in the vicinity of Maryland and Dr. Abbe's researches form a valuable 
contribution to the physiography of eastern America. i. H. o. 
The Ward- Coon ley collection of meteorites. Henry A. Ward. pp. 
100, 6 plates. Chicago, igoo. This collection contains representatives 
of 424 distinct "falls" and "finds," or about four-fifths of all the meteor- 
ites known to science. It contains specimens of the oldest falls, dating 
from the fourteenth and eighteenth centuries. Prof. Ward has travelled 
extensively, and has gathered this great collection from the most distant 
parts of the earth, as well as from the largest museums. "Few meteorite 
collections in the world (we believe only four) have an equal number of 
kinds, with, at the same time, an average so large (j% pounds)." This 
is not alone a commercial document, but conveys much information, es- 
pecially as to the literature where each meteorite was first described. 
Prof. Ward's diligence and ubiquity in all parts of the world where 
meteorites are known and valued, either in person or correspondence, as 
well as his genial and generous manner, make him welcome and suc- 
cessful in his pursuit. He himself is the meteorite of meteorites. His 
motto is: "Let not each day's descending sun. See by thy hand no mete- 
or won.", N. H. w. 
Some Higher Levels in the Postglacial Development of the Finger 
Lakes of New York State, By Thomas L. Watson. Pages 57-117, with 
3 folded maps and 30 figures, which last are mostly page plates, being 
sections, maps, and views reproduced from photographs. (Reprinted 
from the Report of the Director of the New York State Museum, i8q8.) 
This important brochure describes the shore-lines, deltas, and out- 
lets, of the numerous small glacial lakes of central New York, which, 
as the ice-sheet retreated, became merged in the large glacial lake 
Newberry. In its turn, that lake was succeeded by lake Iroquois 
when' the waters bordering the waning ice sank to the lower outlet at 
Rome, passing to the Mohawk and Hudson valleys. This detailed 
investigation of a large region surrounding Ithaca. N. Y., has been 
done as graduate work of Cornell University, leading toward the de- 
gree of doctor of philosophy. It ably supplements the previous work 
of Profs. Fairchild and Tarr in this region. All these researches show 
impressively the complex history of the Glacial period, and especially 
of the formation of temporary lakes wherever the land sloped toward 
the receding ice boundary during the closing stages of that period. 
w. u. 
