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BINDING MAR 28 '46
EPARTMENT BULLETIN No. 151.-EXPERIMENTS IN CROP PRODUCTION ON
FALLOW LAND AT SAN ANTONIO:
Introduction....
Climatic conditions.
Soil conditions..
Fallowing experiments...
Vegetative growth of crops on fallowed land.
Soil-moisture studies.
Summary.
DEPARTMENT BULLETIN No. 152.-THE EASTERN HEMLOCK:
Introduction..
Geographical range.
Commercial range.
Amount of standing timber.
Value of standing hemlock.
Utilization of hemlock..
Structure and development of the tree.
Associated species.....
Effect of light, soil, and moisture on the composition of the stand..
Reproduction..
Rate of growth..
Susceptibility to injury.
Hemlock in forest management.
Appendix......
Department BULLETIN No. 153.—FOREST PLANTING IN the Eastern United
STATES:
Opportunities for forest planting....
Status of forest planting in the region.
Establishment of plantations..
Care of plantations..
Mistakes in tree planting.
Yields and returns..
Individual species.
Appendix....
DEPARTMENT BULLETIN No. 154.-THE LIFE HISTORY OF Lodgepole PINE
DEPARTMENT BULLETIN No. 155.-WOOD PIPE FOR CONVEYING WATER FOR
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