666 REVIEWS 



Yorkshire Type Ammonites. Part III. Edited by S. S. Buckman. 

 The scope of this work has been defined in a notice of the earlier 

 parts. The present instalment includes the original descriptions with 

 additional notes by the editor, and figures of the type specimens, of 

 eight species, bringing the total number of species now defined and 



illustrated up to thirty. 



S. W. 



Report on Traverse through the Southern Part of the Northwest 

 Territories from La Seul to Cat Lake in igo2. By Alfred G. 

 Wilson. [Geol. Survey of Canada, No. 1006.] Pp. 21. 



The district traversed was wholly an area of Archaean rock (schists 

 and granites). Many of the granites were notable on account of the 

 large amount of microcline contained. Schists were mainly basic, biotite, 

 and amphibole schists. Glacial striae indicated a general glacial move- 

 ment S.W. to W.S.W. 



H. C. C. 



Oil Resources of Illinois with Special Reference to the Area Outside 

 of the Southeastern Fields. By Raymond S. Blatchley. 

 [Bull. Illinois State Geological Survey No. 16, pp. 7-138]; 

 Plates 13, Figs. 2. 

 In this report the author presents a general review of the geology of 

 Illinois as applied to the petroleum industry. He tabulates and repre- 

 sents graphically a number of well records which are chosen to furnish 

 a series of sections running in different directions across the central and 

 southern part of the state. The No. 6 coal bed furnishes a key horizon, 

 the underlying formations lying generally parallel with it. In a few 

 of the better-explored areas this horizon is mapped in contour. 



E. R. L. 



Meteor Crater {Formerly Called Coon Mountain or Coon Butte) in 

 Northern Central Arizona. By D. M. Barringer. Read 

 before the National Academy of Sciences at Its Autumn 

 Meeting at Princeton University, November 16, 1909. Pp. 24; 

 Plates 18, Maps 3. 

 There seems to be no doubt that the so-called crater is the work 



of a falling meteorite. The author has made a careful and detailed 



