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Fig. 4. Examples of earlier positions of Lake Erie and the glacial ice sheet at various stages of advance and retreat. Modified from Forsyth (1971) and Barnett (1992).





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HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal