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* Bulletin 59: The Maple Sugar Industry. Price, 5 cents. 
_A complete account of old and new methods of maple-sugar manufacture, giving 
directions for handling the maple-sugar grove and statistics showing the extent and 
growth of the industry since 1850. 
Farmers’ Bulletin 252: Maple Sugar and Sirup. 
A brief presentation of the material used in the preceding bulletin. 
FOREST EXTENSION AND REPLACEMENT. 
* Bulletin 29: The Forest Nursery. Price, 10 cents. 
Instructions for the collection of tree seeds and the propagation of seedlings, with 
other information of value to tree planters. 
* Bulletin 45: The Planting of White Pine in New England. Price, 20 cents. 
An account of existing white-pine plantations in this region, and a discussion of 
the conditions under which commercial or protective plantations may be successfully 
made. : 
* Bulletin 52: Forest Planting in Western Kansas. Price, 10 cents. 
An investigation for the purpose of determining the kinds of forest trees best adapted 
to western Kansas and the cultural methods which have proved most successful. 
* Bulletin 63: The Natural Replacement of White Pine on Old Fields in New England. 
Price, 10 cents. 
A description of the manner in which pastures and cut-over lands in this region 
tend to encourage the second growth of white pine; a discussion of the growth, repro- 
ductive power, and value of white-pine groves and woodlots; a consideration of the 
best means of encouraging natural replacement of white pine and of supplementing 
it with artificial replacement, and a statement of the profits which may be derived 
from the culture of white pine. 
* Bulletin 65: Advice for 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 
directions 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 22 (Fifth Revision): Practical Assistance to Tree Planters. 
Circular 37: Forest Planting in the Sand-Hill Region of Nebraska. 
Circular 41: Forest Planting on Coal Lands in Western Pennsylvania. 
Circular 45: Forest Extension in Eastern Nebraska. 
Circular 81: Forest Planting in Ilinois. 
Circular 99: Suggestions for Forest Planting on the Semi-Arid Plains. 
Circular 100: Suggestions for Forest Planting in the Northeastern and Lake States. 
Circular 109: Forest Planting in the North Platte and South Platte Valleys. 
A discussion of the choice of forest trees for planting in the region, with special ref- 
erence to the purpose of plantations, the soil and site, and the best spacing and proper 
care of the trees. 
Extracts from Yearbooks of the Department of Agriculture: 
-No. 212: Forest Extension in the Middle West (1900). 
No. 270: Practicability of Forest Planting in the United States (1902). 
No. 376: How to Grow Young Trees for Forest Planting (1905). 
Farmers’ Bulletin 134: Tree Planting on Rural School Grounds. 
[Cri. 36] 
