Displaying 71 - 80 of 85
Buckner
The meaning of 'natural' as a guideline for managing public forests is questioned. Evidence of a rapidly shifting flora over eastern North America in recent geologic time is presented along with historical evidence of the open character of the…
Type: Document
Year: 1983
Keith
[no description entered]
Type: Document
Year: 1980
Fritts
[Description from Elsevier website] Tree Rings and Climate deals with the principles of dendrochronology, with emphasis on tree-ring studies involving climate-related problems. This book looks at the spatial and temporal variations in tree-ring…
Type: Document
Year: 1976
Koeppen
From the text ... 'Charcoal is largely unaffected by fungi or other woods destroying organisms. Consequently, it will persist in soil for great periods of time and often turns up in archaeological diggings and paleobotanical studies. The…
Type: Document
Year: 1972
Ferguson
[From first paragraph] Dendrochronology may be defined as the study of the chronological sequence of annual growth rings in trees. The concepts and techniques of the science, as presented here, reflect the work and practice of the Laboratory of Tree…
Type: Document
Year: 1970
Galinat, Ruppe
Another large and significant collection of prehistoric maize cobs (Zea Mays L.) with Tripsacoid characteristics that are indicative of introgression from either Tripsacum spp. or its maize derivative, teosinte (Zea mexicana Reeves and Mangelsdorf…
Type: Document
Year: 1961
Heusser
[from the text] The science of palynology has come a long way since the presentation of the first paper on modern pollen analysis by Lennart von Post at Oslo in 1916. Like many sciences it was initiated as a rather narrow discipline and consisted…
Type: Document
Year: 1960
Mangelsdorf, MacNeish, Galinat
[no description entered]
Type: Document
Year: 1956
Mangelsdorf, Lister
[no description entered]
Type: Document
Year: 1956