Geology and Mineralogy. 107 



produced about 4,500,000 bbls. in 1910 and the industry is still 

 increasing; hence the interest of this bulletin, which describes 

 the subject from its different standpoints. On the theoretical 

 side, it is to be noted that the recent work of the Geophysical 

 Laboratory in Washington comes in for discussion. Probably 

 the most valuable part of the Bulletin is that dealing with the 

 numerous localities arranged geologically from the Lower 

 Magnesian limestone of the Ordovician to the LaSalle and Fair- 

 mount limestones of the Pennsylvanian. 



The Illinois Survey has also issued the following: Bulletin 20. 

 The Carlyle Oil Field and Surrounding Territory ; by E. W. 

 Shaw, U. S. Geol. Survey in cooperation with State Geological 

 Survey. Pp. 37; plates II- VII. The Carlinville Oil and Gas 

 Field ; by Fred H. Kay, State Geol. Survey. Pp. 38-50; 

 plates VIII-X. Urbana, 1912. 



4. .Topographic and Geologic Survey of Pennsylvania / 

 R. R. Hice, State Geologist. Report No. 5. The Talc and Ser- 

 pentine of Northampton Co. and the Portland Cement Materials 

 of the Lehigh District ; by Frederick B. Peck. Pp. 65; IV 

 plates, 9 figures. — The special area covered by this report embraces 

 the central portions of Lehigh and Northampton counties in East- 

 ern Pennsylvania, and extends across the Delaware river into War- 

 ren County, New Jersey. Two lines of work are followed out in 

 detail ; the first deals with the talc and serpentine deposits and 

 describes their geological occurrence and also the uses to which 

 they are put. The second takes up the cement industry, treating 

 it both historically and from the practical side. It is interesting 

 to note that the first Portland cement works of the United States 

 were begun in 1879 at Coplay, Lehigh Co.; these, though small 

 in the beginning, now manufacture from 2,000 to 3,000 barrels 

 daily. Notwithstanding the rapid growth of this industry over 

 the country at large, as noted above, the Lehigh district still yields 

 about one-third of the total annual cement production of the 

 United States. 



5. Report of Flood Commission of Pittsburgh, Pennsylvania, 

 1911, containing the results of the Surveys, investigations and 

 studies made by the Commission for the purpose of determining 

 the causes of, damage by and methods of relief from floods in the 

 Alleghany, Monongahela and Ohio rivers at Pittsburgh, Penn., 

 together with the benefits to navigation, sanitation, water supply 

 and water power to be obtained by river regulation. Pp. 452, 

 illustrated with diagrams, plates, and maps in pocket. — The great 

 Ohio valley flood of 1907 resulted in property losses amounting 

 to more than $100,000,000 and spurred into aggressive action 

 towns and cities that had theretofore looked on floods as a neces- 

 sary, recurrent evil. The Inland Waterways Commission began 

 to study the problem, and local commissions were appointed, the 

 largest and most important being the Pittsburgh Commission. 

 Its report is the most detailed, scientific, and the most valuable 

 from the standpoint of legislative action, that has yet been pub- 



