REVIEWS 509 



Jefferson, Mark S. W. Li?niiing Width of Meander Belts. Nat. Geog. 



Mag., Vol. XIII, pp. 373-84, 1902. 



The small Matfield River of Massachusetts was made a subject of special study, 

 and the results are compared with published results on the moderate-sized Oder and 

 the great Mississippi River, for each stream has meanders on its flood plain. The 

 data concerning a few rivers having incised meanders are then examined and found 

 to be insufficient to establish definite relations, though it is thought that the discord- 

 ances might be removed by more detailed studies. The mean meander ratio is found 

 to be 17. 6 : I ; that is a meander belt is that many times the width of the stream. 



JuLiEN, Alexis A. Geology of Central Cape Cod. Am. Geol., Vol. XXVII, 



pp. 44, 1901. 



Discusses the glacial formations with special reference to the district from Chatham 

 to Yarmouth. Attention is called to the intercalation of clays in the stratified deposits 

 south of the morainal backbone of the Cape which have suffered some disturbance 

 and flexure. Kettle-shaped hollows and pond basins are discussed in their relation 

 to preglacial drainage valleys. Attention is also given to changes of level. 



JULIEN, Alexis A. Erosion by Flying Sand of the Beaches of Cape Cod. 

 Abstract Ann. N. Y. Acad. Sci., Vol. XIV, pp. 152, igoi. 

 Not examined. 



Wilson, A. W. G. The Medford Dike Area. Proc. Boston Soc. Nat, Hist., 



Vol. XXX, pp. 353-74, 1901. 



The discussion relates mainly to the crystalline rocks, but the glacial phenomena 

 of the region are briefly described. 



CONNECTICUT. 



HoBBS, "W. H. An Instance of the Action of the Ice Sheet upon Slender 

 Projecting Rock Masses. Am. Jour. Sci., 4th series. Vol. XIV, pp. 399- 

 404, igo2. 

 Discusses the abrading effect of the ice-sheet on slender masses of projecting 



rock along the bluffs of the Pomperaug valley of Connecticut, and trains of bowlders 



resulting therefrom. 



NEW YORK. 



Fairchild, H. L. Pleistocene Geology of Western New York. Twentieth 

 Rept. of State Geologist for 1900, pp. 103-39 Pis. 9-41, 1902. 

 The results of a special study of the Iroquois shore line between Richland and 

 Watertown, N. Y., are first presented. The chief attention is given to the rate of 

 differential elevation of the beach, though its constructional features are mapped in 

 some detail. This study seems to support the conclusion that the warping of the 

 eastern end of the Ontario basin has mostly, if not entirely, taken place since the 

 extinction of Lake Iroquois, for the entire eastern shore seems equally tilted. The 

 large amount of tilting considered in connection with the usual estimates of post- 

 glacial time {10,000 to 50,000 years) would indicate that the rate of deformation has 

 been much greater than the present rate of 0,42 foot in 100 miles in 100 years, 

 estimated by Gilbert. 



