Forest Leaves, Volume 16Pennsylvania Forestry Association., 1917 |
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Page 3
... region . He then gave a descrip- tion of that disease , also of the white pine weevil , an insect which burrows into white pine shoots . Mr. Geo . H. Wirt , Chief of the State Bureau of Forest Protection , referred to forest fires , and ...
... region . He then gave a descrip- tion of that disease , also of the white pine weevil , an insect which burrows into white pine shoots . Mr. Geo . H. Wirt , Chief of the State Bureau of Forest Protection , referred to forest fires , and ...
Page 4
... regions of the Com- monwealth . Planting should go on more vigor- ously in all districts where protection against fire is afforded . These are simply a few of the many interests in- volved . They , however , will suffice to meet the ...
... regions of the Com- monwealth . Planting should go on more vigor- ously in all districts where protection against fire is afforded . These are simply a few of the many interests in- volved . They , however , will suffice to meet the ...
Page 5
... regions of Pennsylvania and brought face to face with the deep valleys worn out by the flowing water , two problems would present themselves . Ist , How much power was required to produce these vast excavations , and what became of the ...
... regions of Pennsylvania and brought face to face with the deep valleys worn out by the flowing water , two problems would present themselves . Ist , How much power was required to produce these vast excavations , and what became of the ...
Page 7
... regions which use their resources . It is increasingly clear that National supervision and control of them is necessary and that they could not be abandoned without dis- astrous consequences to western industries and to local welfare ...
... regions which use their resources . It is increasingly clear that National supervision and control of them is necessary and that they could not be abandoned without dis- astrous consequences to western industries and to local welfare ...
Page 8
... region is in the Pocono sand- stone , number X of our State reports . The whole region is , more or less , intersected by deep ravines , which in the west would be digni- fied by the name of " canyons . " These ravines are water - worn ...
... region is in the Pocono sand- stone , number X of our State reports . The whole region is , more or less , intersected by deep ravines , which in the west would be digni- fied by the name of " canyons . " These ravines are water - worn ...
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Common terms and phrases
acres Albert Lewis American amount annual Arbor Day Bedford County birds Brinton Coxe Bruce Ricketts Buck Hill Falls Bucks County burned camp cent Chairman chestnut coal Commission Commonwealth Conklin conservation cord cost damage Department of Forestry dollars Drinker estry F. L. Bitler farm feet Forest Academy forest areas Forest Fire Warden forest fires forest land FOREST LEAVES forest protection Forest Reserves Forest Service France French forests growing growth Henry important industry insects interest J. T. Rothrock labor Lake Legislature locust loss maple meeting membership ment methods miles million Monroe County mountain National Forests Norway spruce nurseries Ohio organization owner Pancoast Pennsylvania Forestry Association Philadelphia Pittsburgh present President production purchase railroad reforestation region River Samuel L Samuel Marshall Scotch pine Secretary seedlings soil species spruce stands stumpage supply timber tion towers United white pine wood