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SUMMARY During March, 1950, tests were made of the use of a Sikorsky S.51 helicopter for normal forestry purposes, including reconnaissance of timber areas and for assistance in Are detection and suppression. Under the conditions encountered, successful use of the machine was made. The...
SUMMARY The variation in cell length within one growth ring at the one level has been studied in 28 angiosperme and 8 gymnosperms. In those angiosperms with distinct growth rings a definite increase in fibre length has been found from the first-formed early wood to the last-formed late wood...
SUMMARY The procedures used in South Australia for the collection and treatment of seed of pines grown for timber production are described. The types of trees preferred for best quality and yield of seed are discussed, and comments made on the desirability of concentrating upon the better trees,...
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