26 



meriting it Tvith artificial replacement, and a statement of the profits which may be 

 derived from the culture of white pine. 



^Bulletin 65: Advice to Forest Planters in Oklahoma and Adjacent Regions. Price, 



5 cents. 



This discusses in detail the forest-supporting capacity of Oklahoma and portions of 

 Indian Territory, Kansas, Colorado, Texas, and New Mexico, and gives practical direc- 

 tions for the establishment and care of forest plantations on the prairies and plains, 

 with several planting plans for windbreaks and farm woodlots in various situations. 



Circular 37: Forest Planting in the Sand Hill Region of Nebraska. 



Circular 41 : Forest Planting on Coal Lands in Western Pennsylvania. 



Extract No. 212, from the Yearbook of the Department of Agriculture (1900) : Forest 

 Extension in the Middle West. 



Extract No. 270, from the Yearbook of the Department of Agriculture (1902): Prac- 

 ticability of Forest Planting in the United States. 



Extract No. 376, from the Yearbook of the Department of Agriculture (1905): How 

 to Grow Young Trees for Forest Planting. 



Farmers' Bulletin 134: Tree Planting on Rural School Grounds. 



Farmers' Bulletin 228: Forest Planting and Farm Management. 



This treats of the best use of forest trees for planting on farms, and gives planting 

 plans based upon the ideal practical relation between farmstead, woodlot, shelter- 

 belt, and windbreak. 



PHYSICAI. PROPERTIES, SEASONING, AND PRESERVATIVE TREATMENT OF 



TIMBER. 



Bulletin 6: Timber Physics, Part I: Preliminary Report. 



This discusses the need, object, and scope of investigations into the nature of our 

 important woods, especially their mechanical and technical properties, giving refer- 

 ences to preceding works and explaining the methods to be pursued by the Service 

 (then the Division of Forestry), including the forms of record and illustrations of 

 the machinery in use. 



■^Bulletin 8: Timber Physics, Part II: Progress Report. Price, 15 cents. 



Contains the results of tests for strength made on longleaf pine prior to 1893; a com- 

 parative study of their significance, particularly as dependent on certain conditions 

 of the test specimens; a comparison of bled and unbled timber, accompanied by a 

 study into the chemical conditions of both, and an account of the general charac- 

 teristics of longleaf pine timber, of the geographical distribution of the species, and 

 of the experimental methods used in the tests. 



Bulletin 10: Timber: An Elementary Discussion of the Characteristics and Proper- 

 ties of Wood. 



A discussion of the characteristics and properties of wood in general, and of the 

 American woods in particular, designed to be of service to engineers, architects, car- 

 penters, lumbermen, and all wood workers. 



Bulletin 41: Seasoning of Timber. 



A study of the general effects and advantages of seasoning timber, with especial 

 reference to railroad ties and their preparation for preservative treatment, including 



