Displaying 1 - 6 of 6
Craddock
Although firesetting is well recognized as one of the most ancient mining techniques for breaking up rocks, surprising little is known about the way in which it was practised. This article reviews not only the archaeological and historical evidence…
Type: Document
Year: 1992
Finney, Martin
Fire intervals were derived from analysis of fire scars on samples taken from 14 redwood (Sequoia sempervirens D. Don (Endl.)) stumps throughout Annadel State Park, California. Samples were obtained from small redwood groves that are isolated within…
Type: Document
Year: 1992
Denevan
The myth persists that in 1492 the Americas were a sparsely populated wilderness, 'a world of barely perceptible human disturbance.' There is substantial evidence, however, that the Native American landscape of the early sixteenth century was a…
Type: Document
Year: 1992
Kauffman, Martin
Numerous studies, historical accounts and archaeological evidence suggest that the historical density and abundance of black oak (Quercus kelloggii Newb.) in mixed conifer forests was much greater than today. Reasons for the decline of this species…
Type: Document
Year: 1987
Ritchie
Post-glacial Vegetation of Canada brings together all the available information about the complex history of vegetational and environmental change in Canada since the last Ice Age. As the lands began to emerge from under the ice, they provided a…
Type: Document
Year: 1987
Forney
[no description entered]
Type: Document
Year: 1987