PROCEEDINGS OE THE I'JI 1 L.\l)i;i,I'lI l.\ MEETING 



Page 

 Kinit,'(' ;iii(l rhythmic action of saiul-hlast i-rosioii, from studies in 



the I^ibyan Desert [abstract] : by William H. Hobbs (>.'> 



Corrasivc ofticioncy of natui'al san(I-l)last | abstract | : liy Charles 

 Kcyps (j:; 



False faull-scar]»s of desert ran.t;es [abstract] : by Charles Keyes. 05 



Sti-atij,'raiihic disturbance tlirougli the (»liin \'alley runuinfi from 

 tlie Ai»])alachian I'latean in IVnnsylvania to the Ozark Moun- 

 tains in Missouri jabstract]; by James II. (iardner (Kl 



I'reliminary paper on recent crustal movements in the Lake Erie 

 region [abstract and discussion]; by Charles E. Decker 06 



Quaternary deformation in southern Illinois and southeastern Mis- 

 souri [abstract] ; by Eugene Wesley Shaw (!7 



( >1(1 shorelines of Mackinac Island and their relations to the lake 

 history [abstract] ; by Frank B. Taylor Os 



Some peculiarities of glacial erosion near the margin of the conti- 

 nental glacier in central Illinois [abstract and discussion]; by 

 John L. Rich TO 



X(>\v evidence of the existence of fixed anticyclones above conti- 

 nental glaciers [abstract] ; by William Herbert IIol>bs 7'; 



Origin of Monks mound [abstract] ; by A. R. Crook 74 



Can C-shaped valleys bo produced by I'emovai of talusV [ab- 

 stracl I ; by Alfred C. Lane 75 



rhysiographic studies in the driftless art* jabstract] ; by Arthur 

 C. Trowbridge T<; 



Ilemicones at the mouths of hanging valleys [abstract] ; by 

 Charles E. 1 )ecker 70 



Rlock diagrams of state physiography [abstract] ; by A. K. Lobeck 77 



Kilauea. a drop-fault crater [abstract] ; by George Carroll Curtis 77 



Age !is the determinant of character in volcanoes ]al)stract]; liy 

 George Carroll Curtis 7S. 



Comprehensive coral island theory [abstract] ; by George Carroll 

 Cui'tis 7."; 



Evidence of continental glaciation on Mount Katahdin [abstract] ; 

 by Geoi'gc Carroll Curtis 7n 



Naturalistic land model, the "last word in geology"' [abstract] ; 



by George ( 'arroU Curtis 7!* 



Second Section 81 



Titles and abstracts of pajiers presented before the Third Section and 

 discussions thereon 81 



Pre-Cambrian igneous rocks of the Pennsylvania Piedmont [ab- 

 stract] ; by F. Bascom 81 



Magraatie assimilation [abstract] ; by F. Bascom 82 



Hypersthene syenite (akerite) of the middle and northern Blue 

 Ridge region, Virginia [itbstract] ; by Thomas L. AVatson and 

 Justus H. Cline 82 



Pyrrhotite, norite, and pyroxenite from Litchfield, Connecticut 

 [abstract] ; by Ernest Howe 83 



Some effects of pressure on rocks and nnnerals [abstract and dis- 

 cussion] ; by John Johnstou 83 



