كتب ذات صلة

The "wilt disease," of "flacherie," of the gypsy moth.

Suppression of the gipsy and brown-tail moths and its value to states not infested ...

Some timely suggestions for the owners of woodlots in New England.

Results of spraying experiments against caterpillars of the gypsy and brown-tail moths

• How to make improvement thinnings in Massachusetts woodlands
  المؤلفون: Cook, Harold O.
• Forest working plan for land belonging to the city of Fall River on the North Watuppa watershed.
  المؤلفون: Cook, Harold O.
• The forests of Worcester County. The results of a forest survey of the fifty-nine towns in the county and a study of their lumber industry ...
  المؤلفون: Cook, Harold O.