35-i Scientific Intelligence. 



sink holes and underground drainage, giving rise to " karst topo- 

 graphy." A chapter on the geologic structure further lays the 

 basis for considering the subject of the surface and underground 

 waters. These are taken up in detail and their origin, quality, 

 and use discussed. Thus much matter of geologic interest is 

 .found in the report. j. b. 



7. Geological Survey of Michigan. — The following publica- 

 tions, parts of the Report for 1906, have recently been issued : 



Eighth Annual Report of the State Geologist, Alfred C. 

 Lane, for the year 1906. Pp. 578-601. 



The Surface Geology of Portions of Menominee, Dickinson, 

 and Iron Counties, Michigan ; by Israel C. Russell. Pp. 91, 

 with 12 plates and one'figm-e. — This gives a description of the 

 topography of the region named and also the various phases in 

 the glaciation ; the latter has more than a local interest. 



Peat. Essays on its Origin, Uses and Distribution in Michi- 

 gan ; by Charles A. Davis. Pp. 95-395, with plates xiii-xxxi, 

 and figures 2-20. — This series of papers is characterized by the 

 State Geologist as " the fruit of a happy marriage of botany and 

 geology." There is much that is important both from a scientific 

 and an economical standpoint. 



A Geological Section from Bessemer down Black River; by 

 W. C. Gordon, assisted by Alfred C. Lane, State Geologist. 

 Pp. 405-507, plates 32-35, and figures 21-26. 



Crataegus in Southern Michigan ; by C. S. Sargent. Pp. 

 515-570. 



8. Geological Survey of Wisconsin, E. A. Birge, Director. — 

 The following Bulletins have appeared recently : 



No. XVII. Scientific Series No. 5. The Abandoned Shore- 

 Lines of Eastern Wisconsin ; \>y James W. Goldthwait. Pp. 

 ix, 134, with 37 plates and 37 figures. — This is a valuable contri- 

 bution to the glacial and post-glacial history of the Great Lakes, 

 especially as regards the extinct lakes Nipissing and Algonquin. 

 The observations are based upon a large number of accurate 

 measurements made with the wye level. 



No. XVIII. Economic Series No. 11. Rural Highways of 

 Wisconsin ; by William O. Hotchkiss. Pp. x, 136, with 16 

 plates and 2 figures. 



9. Earthquakes, An Introduction to Seismic Geology / by 

 William Herbert Hobbs. — In a review of this book in the 

 March number, (vol. xxv, p. 259) occurred the following typo- 

 graphic error: on page 260, eighth line from the bottom, "fall 

 line " should have read "-fault line." 



III. Paleobotany. 



1. The Flowering Plants of the Mesozoic Age / by Dtjkin- 

 field H. Scott. President's Address, Journal of the Royal 

 Microscopical Society, London, 1907, pp. 129-141, with plates 

 vi-ix. — In this admirable presentation Dr. Scott says, " There 

 is no longer any presurnjDtion that the simplest forms among 



