Other Current Literature. 239 



Mechanical Properties of Western Larch. By O. P. M. Goss. 

 Bulletin 122, U. S. Forest Service. Washington, D. C. January, 

 1913. Pp. 45. 



The National Forest Manual. Regulations of the Secretary of 

 Agriculture and Instructions to Forest Officers relating to Water 

 Power (Act of February 15, ipoi) and Telephone, Telegraph 

 and Power Transmission Lines (Act of March 4, 191 1). Wash- 

 ington, D. C- 1913. Pp. 63. 



The National Forest Manual. General Laws, Parts of Laws, 

 Decisions, and Opinions Applicable to the Creation, Administra- 

 tion, and Protection of National Forests. Washington, D. C. 

 1913. Pp.97. 



National Forests — Location, Date, and Area, January 5/, 1913. 

 Washington, D. C- 1913. Pp. 6. Map. 



There are 160,193,996 acres, of which approximately 13 per 

 cent, is alienated by states and individuals. In addition there are 

 two National Forests in Alaska aggregating 26,748,850 acres and 

 one in Porto Rico of 65,950 acres, making a total for the 163 

 Forests, of 187,008,796 acres- Ten national monuments situated 

 in National Forests have been created under the Act of June 8, 

 1906, for the preservation of objects of historic or scientific 

 interest. The area of these is 1,424,940 acres. Two national 

 game preserves, viz : Grand Canyon and Wichita, situated wholly 

 or in part within National Forests, have been designated under 

 special Acts of Congress for the protection of wild animals. 

 Their area is: Grand Canyon, Arizona, 1,492,928 acres; Wichita, 

 Oklahoma, 57,120 acres. 



The Microscopic Determination of Soil-Forming Minerals. 

 By W. J. McCaughey and W. H. Fry. Bulletin 91, Bureau of 

 Soils. Washington, D. C. March, 1913. Pp- 100. 



The Utilisation of Acid and Basic Slags in the Manufacture of 

 Fertilizers. By W. H. Waggaman. Bulletin 95, Bureau of 

 Soils. Washington, D. C. March, 1913. Pp. 18. 



Studies in Cactaceae: I. By N. L. Britton and J. N. Rose- 



