by P. H Cochran
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Thirty-five-year growth of ponderosa pin...
Thirty-five-year growth of thinned and u...
Response of a pole-size ponderosa pine s...
Gross yields for even-aged stands of Dou...
Effect of operational fertilization on f...
Should ponderosa pine be planted on lodg...
The different forms of flowers on plants...
The various contrivances by which orchid...
The effects of cross and self fertilisat...
The movements and habits of climbing pla...
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