284 RECENT P UBLICA TIONS 



stance du 19 Novembre 1900, pp. 132 et 134.] Papers read by the 

 President, M. A. de Lapparent, at meeting of November 19, iqoo. 



— Wahnschaffe, Felix. Die Ursachen der Oberflachengestaltung des 

 Norddeutschen Flachlandes. Mit 9 Beilangen und 33 Textillustrationen. 

 J. Engelhorn, Stuttgart, 1901. 



— Washington Academy of Sciences, and Affiliated Societies, Directory of 

 the. 1901. 



— Washington Academy of Sciences, Proceedings of : 



Mammals collected by Dr. W. L. Abbott on the Natuna Islands. By 



Gerritt S. Miller, Jr. Vol. Ill, pp. 1 1 1-138, March 26, 1901. 

 Papers from the Harriman Alaska Expedition. XX. The Nemerteans. 

 By Wesley R. Coe, Yale University. Vol. Ill, pp. 1-110, Pis. 1-13. 

 March 26, 1901. '.'.'.' 



Results of the Branner-Agassiz Expedition to Brazil. V. Mollusks 

 from the vicinity of Pernambuco, By William Healey Dall. 

 New Birds of the Families Tanagridas and Icteridse. By Robert 

 Ridgway. Vol. Ill, pp. 139-155, April 15, 1901. 



-—Watson, Thomas L. Weathering of Granitic Rocks of Georgia. Bulletin 

 of the Geological Society of America. Vol. XII, pp. 93-108, Pis. 6-1 1. 

 Rochester, February 1901. 



— Wisconsin Academy of Sciences, Arts, and Letters. Transactions of the 

 Vol. XIII, Part I, 1900. With 28 plates. Edited by the Secretary, 

 Madison, 1901. 



— Willis, Bailey. Paleozoic Appalachia, or The History of Maryland 

 during Paleozoic Time. Maryland Geological Survey, Special Publica- 

 tion. Vol. IV, Part I. The Johns Hopkins Press, Baltimore, November, 

 1900. 



— Winchell, Alexander N. Mineralogical and Petrographic Study of 

 the Gabbroid Rocks of Minnesota ; more particularly of the Plagiocla- 

 sytes. [Reprinted from the American Geologist, Vol. XXVI, 1900, 

 Minneapolis, Minn.] With a map and 13 plates. 



— Winchell, N. H. Glacial Lakes of Minnesota. Bulletin of the Geolog- 

 ical Society of America. Vol. XII, pp. 109-128, 12 plates. Rochester, 

 February 1901. 



