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Photocopied Letters from Charles Sprague Sargent to Reginald Somers Cocks, 1908-1926
註釋Consists of 298 photocopies of letters from Professor Charles Sprague Sargent of Harvard University to Professor Reginald W.S. Cocks of Tulane University. The letters pertain to Louisiana plants, flora, trees, botany, and cultivated plants.