Effect of vacuum pumping on lateral movement of sap in the maple tree bole /

by Blum, Barton M
Published 1968

Controlling taphole depth in maple sap production research /

by Koelling, Melvin R (Melvin Ray), 1937-
Published 1967

Some observations on age relationships in spruce-fir regeneration /

by Blum, Barton M
Published 1973

Stump sprouting of four northern hardwoods /

by Solomon, Dale S
Published 1967

A summary and evaluation of research on the use of plastic tubing in maple sap production /

by Koelling, Melvin R (Melvin Ray), 1937-
Published 1968

Vacuum pumping increases sap yields from sugar maple trees /

by Blum, Barton M, Blum, Barton M
Published 1968