abstracts: geology 537 



METALLURGY.— rop/>^r. Bur. Stand, Ciic. No. 73. Pp. 103. 

 1918. 



A compilation is given of the most accurate published infoi-mation 

 concerning the physical and mechanical properties of the metal copper, 

 together with data and discussion on the effect of higher and lower 

 temperatures upon the physical properties as well as that of impurities 

 in the metal. The circular is concluded with a comprehensive bibliog- 

 raphy of the subject, and some typical standard specifications for the 

 metal in different forms. 



This circular is one of a series dealing with properties of metals and 

 alloys. 



GEOLOGY. — The Quaternary geology of southeastern Wisconsin, with 

 a chapter on the older rock formations. William C. Alden. U. S. 

 Geol. Survey Prof. Paper 106. Pp. 356, with 39 plates and 21 

 figures. 1918. 



This report treats of the southeastern quarter of the State of Wis- 

 consin, an area of more than ten thousand square miles. The main 

 interest of this paper may be said to center in the phenomena devel- 

 oped by the Green , Bay glacier and their relations to surrounding 

 areas. The topographic control of glacial flow is illustrated by many 

 interesting features. On the east this glacier, after surmounting the 

 Niagara escarpment, met the lateral flow of Lake Michigan glacier 

 head-on and the great interlobate Kettle Moraine was formed. At 

 the south the Green Bay ice spread with typical radial flow over the 

 eroded surface of an older drift sheet. It developed a remarkable 

 system of radiating drumlins, with eskers, outwash plains, and reces- 

 sional moraines. On the west the glacier encroached on the Driftless 

 Area and the relations of the ice to a well-marked erosion topography 

 may be studied in detail. 



The Paleozoic rock formations are mapped and described, physio- 

 graphic development and preglacial topography are discussed, and the 

 configuration of the bed rock and its relations to the many beautiful 

 lakes and the present drainage system are shown on a map. 



The glacial phenomena are illustrated by one of the finest maps of 

 glacial deposits ever published. This map, on a scale of about 4 miles 

 per inch, shows in colors the relations of the various drift features to 

 the drainage and roads of each township. The report and accompany- 

 ing maps should be of interest to general and scientific readers and be 

 of great value to the schools and colleges of Wisconsin and other 

 states. W. C. A. 



