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1951, our 44th year
Figures and descriptions illustrative of British organic remains. Monograph
Forrest Keeling multiflora rose : horse high, bull strong, goat tight
Fall bulbs : season of 1947--1948
Descriptions of new species of birds of the genera Chrysotis, Formicivora and Spermophila
The periodical cicada in 1906 (Tibicen septendecim L.)
[Box list]
La granja (irrigated farm)
Additions to the Mammalian fauna of Big Bend Ranch State Park, Texas
Eastern states endangered plants