RECENT PUBLICATIONS 
—Rorcu, A. L. Proof of the Existence of the Upper Anti-Trade and the Meteo- 
rological Conditions at Lesser Heights in the Northern Tropics. [Blue Hill 
Meteorological Observatory, Mass.] 
—Rowe, Pu.D., J. P. Montana Coal and Lignite Deposits. [University of 
Montana Bulletin No. 37. Geological Series No. 2. Missoula, Mont., 
1906.] 
—Scaiia, S. Sopra le Argille Postplioceniche dellasVena Presso Piedmonte 
Etneo (Prov. di Catania). [Estratto dal Rend. della R. Accademia delle 
Scienze Fisiche e Matematiche di Napoli Fascicolo 4°—Aprile, 1906.] 
—ScCHREINER, O., AND FattyerR, G. H. The Absorption of Phosphates and 
Potassium by Soils. [U. S. Department of Agriculture, Bureau of Soils 
Bulletin No. 32. Washington, 1906.] 
—Scuwartz, A.R.C.S., F.G.S., E. H. L. South African Paleozoic Fossils. 
[From Records of the Albany Museum. Vol. I, No. VI, issued June, 1906.] 
Coast-Ledges in the South-West of the Cape Colony. [From the Quar- 
terly Journal of the Geological Society, Vol. LXII, pp. 70-87. February, 
1906.| 
The Rivers of Cape Colony. [From The Geographical Journal for 
March, 1906.] 
The Thickness of the Ice-Cap in the Various Glacial Periods. [Ex- 
tracted from the Geological Magazine, Decade V, Vol. III, No. 501, March, 1906.] 
- —Science Year Book, The, for 1907. [London, 1907.] 
—SHAFER, G. D., Histology and Development of the Divided Eyes of Certain 
Insects. [Proceedings of the Washington Academy of Sciences, Vol. VIII, 
pp. 459-86. Pls. XXIV-XXVII. Washington, March 6, 1907.] _ 
—SxrF, F. J. V. Annual Report of the Director to the Board of Trustees for 
the Year 1906. [Field Museum of Natural History Publication 119. Report 
Series, Vol. III, No. 1. Chicago, January, 1907.] 
—S.LicHTER, C. S. The Underflow in Arkansas Valley in Western Kansas. 
[U. S. Geological Survey. Water-Supply and Irrigation Paper No. 153. 
Series K, Pumping Water, 12. Series O, Underground Waters, 50. Wash- 
ington, 1906.] 
—SLICHTER, C.S., anD WotrFr, H. C. The Underflow of the South Platte Val- 
ley. [U. S. Geological Survey. Water-Supply and Irrigation Paper No. 
184. Series K, Pumping Water, 13. Series O, Underground Waters, 65. 
Washington, 1906.] ; 
—Stocum, A. W. A List of Devonian Fossils Collected in Western New York, 
with Notes on Their Stratigraphic Distribution. [Field Columbian Museum. 
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