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Birds of California in relation to the fruit industry
Food of the woodpeckers of the United States
Light in relation to tree growth
The educational work of the Extension Service with reference to wildlife conservation
The forests of Alaska
Sugar pine and western yellow pine in California
Final supplemental environmental impact statement : for clarification of language in the 1994 record of decision for the Northwest Forest plan ; nati…
Threatened and endangered plants of Alaska
The North-West of Canada being a brief sketch of the north-western regions, and a treatise on the future resources of the country
A year's residence in the United States of America : treating of the face of the country, the climate, the soil, the products, the mode of cultivatin…
