90 Scientific, Intelligence. 



Weidman. 64 pp., 10 pis., including soil map. — The different 

 classes of glacial drift constitute the principal part of the surface 

 outcrops of Central Wisconsin and these formations are described 

 in detail as to character, water content, etc. Climatic conditions 

 are discussed in Chapter III, (pp. 49-64). 



Bulletin XII. — The Plankton of Lake Winnebago and Green 

 Lake ; by G. Dwight Marsh. 89 pp., 22 pis. — A comparative 

 study of the Plankton of two lakes of different types has been 

 carried on for a considerable time and many facts regarding the 

 annual and geographical distribution of the animals and plants 

 have been secured. The principles controlling distribution are 

 also discussed. 



3. Geological Survey of Ohio. Edward Orton, Jr., State 

 Geologist. Fourth Series, Bulletin 1. The Occurrence and 

 Exploitation of Petroleum and Natural Gas in Ohio; by J. A. 

 Bownocker. 320 pp., 6 pis., 10 maps. — The history of the Ohio 

 Geological Survey is divided into four distinct periods: 1837- 

 1838, when in charge of W. W. Mather; 1869-1888 under J. S. 

 Newberry and Edward Orton; 1889-1894 when the scope of the 

 survey was somewhat extended, but still in charge of Edward 

 Orton; 1900 — when the present State Geologist was appointed 

 and a reasonable appropriation granted by the General Assembly. 

 The investigations now in progress are a revision of the areal 

 and stratigraphical geology, by C. S. Prosser ; and a study of 

 the cement, lime, brick, salt and coal industries by various special- 

 ists. The first publication issued by the fourth survey is an 

 elaborate detailed discussion of the history, development, utiliza- 

 tion, and future prospects of the oil and gas industry of the 

 state. The descriptions are by townships and include a mass of 

 local geological detail. The origin of oil and gas is discussed in 

 a separate chapter. 



4. Geological Survey of New Jersey, Henry B. K&mmel, 

 State Geologist. Annual Report, 1903. 128 pp., 14 pis. — The 

 work of the New Jersey Survey shows progress along several 

 lines of activity. It has been decided to replace the present 

 topographic map with a new system of non-overlapping sheets. 

 Professor Salisbury is to prepare a report on the surface geology 

 of the southern part of the state. Dr. Weller reports that the 

 Cretaceous presents definitely recognizable faunal zones traceable 

 entirely across the state. Dr. Eastman has made arrangements 

 to complete his studies of the Triassic fish at once. In addition 

 to the usual reports on underground water, mineral resources, etc., 

 a special report is made by C. C. Vermeule on the Passaic floods 

 and a scheme for their control by a throttling dam at Little Falls. 



5. Delta Plains in the Nashua Valley. — The extensive exca- 

 vations and borings made by the Metropolitan Water Board in 

 the region of glacial Lake Nashua have furnished unusual oppor- 

 tunities for the study of glacial deposition. In the Technology 

 Quarterly, xvii, No. 1, W. O. Crosby describes in detail the 

 structure and composition of the delta plains of the Clinton stage 

 and their associated deposits. 



