294 Forestry Quarterly. 



Poles, Cross Arms, Brackets, and Insulator Pins Purchased, 

 ipop. Forest Products, No. 9, Bureau of the Census. Compiled 

 in cooperation with the U. S. Forest Service. Washington, D. C. 

 191 1. Pp. 14. 



Surface Water Supply of the United States: Part X, The 

 Great Basin. By E. C. La Rue, and F. F. Henshaw. Water 

 Supply Paper 270, U. S. Geological Survey. Washington, D. C. 

 191 1. Pp. 192. 



Denudation and Erosion in the Southern Appalachian Region 

 and the Monongahela Basin. By Clenn. Professional Paper 72, 

 U. S. Geological Survey. Washington, D. C. 191 1. Pp. 137. 



Reconnaissance Soil Survey of the Eastern Part of the Puget 

 Sound Basin, Washington. By A. W. Mangum. U. S. Bureau 

 of Soils. Washington, U. C. 191 1. Pp. 90. 



Reconnaissance Soil Survey of Western South Dakota. By C. 

 N. Coffey. U. S. Bureau of Soils. Washington, D. C. 191 1. 

 Pp. 80. 



Soil Survey of the Woodland Area, California. By C. W. 

 Mann, J. F. Warner, H. L. Westover and J. E. Ferguson. U. S. 

 Bureau of Soils. Washington, D. C. 191 1. Pp. 57. 



Water Power of the Cascade Ranges: Part I, Southern Wash- 

 ington. By J. C. Stevens. Water Supply Paper 253, U. S. Geo- 

 logical Survey. Prepared in cooperation W\\h the State of Wash- 

 ington. Washington, D. C. 1910. Pp. 94. 



The Water Balance of Succulent Plants. By D. T. MacDougal 

 and E. S. Spalding. Publication 141, Carnegie Institute of Wash- 

 ington. 1910. Pp. yy. 



This report embodies two papers, viz: Form- Alterations and 

 Growth of Cacti by E. S. Spalding and Variations of the Water 

 Balance by D. T. MacDougal. The investigations were made 

 near the Desert Laboratory in the Sonoran desert, attention being 

 chiefly directed to the great tree cactus (Carnegiea gigantea), the 



