Tapholes drilled into frozen sugar maples close slowly
By: Russell S. Walters
Contributors: United States. Forest Service; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research note NE -- 265
Publisher: Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station
Published: 1978
Place of publication: Broomall, Pa
Language: eng
Subjects: Maple sugar; Sugar maple
Notes: Bibliography: p. 4