 | 1903 - 188 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | Gifford Pinchot - 1899 - 214 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. Iu certain situations numbers of trees are killed by lightning, which has also... | |
 | 1899 - 196 pagini
...worst. ILL the United States sheep grazing aud wiucl come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | 1899 - 194 pagini
...worst. In the United States sheep grazing and wiucl come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | 1900 - 194 pagini
...worst. In the United States sheep grazing and wind coine next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | 1900 - 52 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | Gifford Pinchot - 1899 - 196 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage thau sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | Michigan. Forestry Commission - 1906 - 230 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | Michigan. Forestry Commission - 1906 - 236 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
 | United States. Forest Service - 1937 - 398 pagini
...worst. In the United States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed by lightning, which has also... | |
| |
States sheep grazing and wind come next. Cattle and horses do much less damage than sheep, and snow break is less costly than windfall. Landslides, floods, insects, and fungi are sometimes very harmful. In certain situations numbers of trees are killed... 