I 1 6 EDITORIAL 



"Geological Probabilities as to Petroleum." (President's address.) By 

 Edward Orton. 



"On the Occurrence of Corundum in North Hastings, Ont." By A. E. 

 Barlow. 



"The Harvard Geographical Models." W. M. Davis. 



"Experiments on the Flow of Rocks, now being conducted at McGill 

 University." By Frank. D. Adams and John T. Nicolson. 



" Estimates and Causes of the Shortening of the Outer Part of the Earth." 

 By C. R. Van Hise. (By title.) 



"New Geothermal Data from South Dakota." By N. H. Darton. 



"Concentric Weathering in Sedimentary Rocks." By T. C. Hopkins. 



"Note on an Area of Compressed Structure in Western Indiana." By 

 George H. Ashley. 



T. C. C. 



