88 Scientific Intelligence. 



mica ($218,000), copper ($136,000), gold ($122,000) and monazite 

 ($126,000). The present report, by Dr. Pratt, gives an account 

 of the mining industries of the state, particularly as related to 

 gold, mica and monazite. 



The accompanying bulletins discuss the introduction of shade 

 trees in the cities of the state, and the methods of terracing farm 

 lands. This latter subject is particularly important in a region 

 where the prosperity of the community depends so largely upon 

 the preservation of the natural soil, which, when left to natural 

 processes, soon suffers destructive erosion and is permanently lost. 



4. Report of the State Geologist of Vermont for 1907-8. 

 Pp. 302, with 59 plates. — In the first portion (pp. 1-57) of this 

 volume, the state geologist, Professor G. H. Perkins, treats of 

 the mineral resources of the state, of which marble forms the 

 bulk. In 1906 marble worth nearly four and one-half million dol- 

 lars was produced, and of granite about four million dollars. T. 

 Kelson Dale describes the Granites of Vermont ; H. E. Mervin, 

 Some Late Wisconsin Shore Lines ; C. H. Hitchcock, the Geolog}^ 

 of the Hanover, New Hampshire, Quadrangle ; G. H. Perkins, 

 the Geology of Franklin and Chittenden Counties ; George E. 

 Edson, the Geology of the Town of Swanton ; andC. H. Richard- 

 son, the Geology of Newport, Troy and Coventry. 



An interesting discovery is the finding at St. Albans of a 

 Middle Cambrian fauna with Paradoxides. The fine skeleton of 

 a Pleistocene whale, Delphinapterus vermontamts, long shown 

 at the State Museum, is here described and illustrated at great 

 length by the state geologist. Professor Richardson seems to 

 have fossil evidence indicating that the highly metamorphosed 

 sedimentaries lying between the eastern foothills of the Green 

 Mountains and the valley of Lake Memphremagog are of Cambro- 

 Ordovician age. The fossils appear to be crushed graptolites. 



c. s. 



5. Thirty -second Annual Report, Indiana Department of 

 Geology, W. S. Blatchley, State Geologist. Pp. 1231, with 22 

 maps and 55 plates. Indianapolis, 1908. — Nearly 300 pages are 

 devoted to a description of the soils of 17 counties of Southern 

 Indiana by Messrs. Shannon, Lyons, Snider, Ward and Ellis. 

 The vast oolitic limestone industrjr is described at length by the 

 state geologist and associates. There are also the annual reports 

 of the inspector of mines and natural gas. The chapter on the 

 petroleum industry in 1907 states that since 1891 there have been 

 sunk for oil 24,297 wells into the Trenton limestone and of these 

 15,210 were producing last January. Last year the total shipped 

 output was nearly five million barrels of 42 gallons each, bring- 

 ing about 88 cents per barrel. 



About one-half of the book is devoted to " The Stratigraphy 

 and Paleontology of the Cincinnati Series of Indiana," by Prof. 

 R. E. Cumings. Sixty-seven local sections are described in detail 

 and the fossils listed for each bed. This is followed by a general 

 discussion of the Cincinnatian series. The greater part of the 



