132 GEOLOGY. 



We"bster, Prof. N. B. On the Physical and Geological Character- 

 istics of the great Dismal Swamp, and the Eastern Counties of 

 Virginia. Amer. Nat. vol. ix. pp. 260-262. 



Wheeler, George M. Annual lleport upon the Geographical Explo- 

 rations and Surveys west of the One Hundredth Meridian, in Cali- 

 fornia, Nevada, Nebraska, Utah, Arizona, Colorado, New Mexico, 

 "Wyoming, and Montana. 8vo. Washington. 

 Report. Geology and Palaeontology, Mineralogy, pp. 30-32. — Ap- 

 pendices. Report on the Geology of that part of North-western New 

 Mexico examined during the Field-season of 1874, by E. D. Cope, 

 pp. 61-97, pis. ii.-vi., 18 woodcuts. Chaps. I. The Eastern Slope of 

 the Rocky Mountains. II. The Yalley of the Rio Grande to Santa Fe. 



III. The Vertebrate Palaeontology of the Santa Fe Marls, see 'post. 



IV. The Valley of the Rio Grande, from Santa Fe to the Zandia Moun- 

 tains. V. The Sierra Madre and its Western Slope, with descriptions 

 of Unio Cristonensis, Meek, and TypotJiorax coccinarum, Cope (reptile). 

 VI. The Eocene Plateau. — Geological and Mineralogical Report on 

 portions of Colorado and New Mexico, by Dr. 0. Loew, pp. 97-116, 

 4 woodcuts. The valley of the Arkansas river at Pueblo, Colorado. 

 The Sierra Mojada and Sangre de Christo Mountains. The San Juan 

 Mountains, with analysis of basalt. The Mountain Region of Abiquin, 

 with analysis of zeolite. The Nacamiento Desert, with analyses of 

 sandstone, garnet, and chrysolite. From Mount Taylor to the Placer 

 Mountains, with analysis of turquoise. The Mountains between Santa 

 Fe and Las Vegas, with analyses of limestone and felspar. — Report 

 upon the Agricultural Resources, &c., with analyses of soils, &c., by 

 Dr. 0. Loew, pp. 129-139. W. W. 



Wheeler, George M., and D. W. Lockwood. Preliminary Report upon 

 a Reconnaissance through Southern and South-eastern Nevada, 

 made in 1869. Pp. 72. 4to. Washington. 



Accounts of mines are given. 



Winchell, Prof. Alex. Rectification of the Geological Map of Mi- 

 chigan, embracing observations on the Drift of the State. Salem.. 



Winchell, Prof. N. H. The Geological and Natural History Survey 



of Minnesooa : the Third Annual Report. For the Year 1874. 



Pp. 36 ; 2 plates (geological maps). 8vo. /S'^. Paul. 



Describes the geology of Mower and Freeborn Counties. The latter 



is entirely drift-covered. Some Lower Cretaceous rocks are seen in 



the west of Mower County; no lignite of economic value had been 



discovered. Gr. A. L. 



Note on Lignite in the Cretaceous of Minnesota. Amer. 



Journ. ser. 3, vol. x. p. 307. 

 Notes recent discoveries of probably valuable seams of lignite. 



