Forest Leaves, Volume 16Pennsylvania Forestry Association., 1917 |
From inside the book
Results 1-5 of 68
Page 6
... supply . There is again the possibility of a return to a canal system in the State . This would render the need of such storage basins imperative . In fact , every dam that is thrown across a river for the accumulation of electrical ...
... supply . There is again the possibility of a return to a canal system in the State . This would render the need of such storage basins imperative . In fact , every dam that is thrown across a river for the accumulation of electrical ...
Page 16
... supply for such preventive and protective purposes as the Department of Forestry may deem to be efficient . The more money an association can raise for its legitimate expenses the more it re- ceives from the State for the further ...
... supply for such preventive and protective purposes as the Department of Forestry may deem to be efficient . The more money an association can raise for its legitimate expenses the more it re- ceives from the State for the further ...
Page 19
... supply which feeds springs . ( c ) Humus keeps the soil open , summer and winter , permitting it to take moisture rapidly . ( d ) Litter and humus act as a mulch prevent- ing rapid ... supply both for home supply and for FOREST LEAVES . 19.
... supply which feeds springs . ( c ) Humus keeps the soil open , summer and winter , permitting it to take moisture rapidly . ( d ) Litter and humus act as a mulch prevent- ing rapid ... supply both for home supply and for FOREST LEAVES . 19.
Page 20
... supply both for home supply and for power , and all the calamities attendant upon these conditions are the results . The loss cannot be estimated in dollars . The opening of the forests and the removal of humus by fire bring about ...
... supply both for home supply and for power , and all the calamities attendant upon these conditions are the results . The loss cannot be estimated in dollars . The opening of the forests and the removal of humus by fire bring about ...
Page 21
... supplies were not ' inexhaustible ' as has been taught by the technical press and the booster , but that the supplies of pine were nearly gone and that even for the hemlock and hardwoods the end of the cut was coming . The real ...
... supplies were not ' inexhaustible ' as has been taught by the technical press and the booster , but that the supplies of pine were nearly gone and that even for the hemlock and hardwoods the end of the cut was coming . The real ...
Other editions - View all
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