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Questions and answers on biotechnology permits for genetically engineered plants and microorganisms
Let's talk about-- timber supplies : is a timber shortage coming? : a discussion guide on the question of public regulation of timber-cutting practic…
Utilization of Pima cotton
Fighting the flea
The bacteriology of diphtheria, including sections on the history, epidemiology and pathology of the disease, the mortality caused by it, the toxins …
A pill-box trap for red ants
Permitting genetically engineered plants that produce pharmaceutical compounds
San Francisco Zoological Gardens : preliminary master plan newsletter one
What makes the price of oats
"The true relation of agriculture to politics."