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Uber "organbildende Substanzen" und ihre Bedeutung fur die Vererbung : nach seiner am 21. Juni 1906 in der Aula der Universitat Leipzig gehaltenen Antritts vorlesung

$250.00

On Geographical Variation in Color among North American Squirrels: with a list of the species and varieties of the American Sciuridae Occurring North of Mexico

$225.00

Evolution Considered in the Light of Hybridization

$250.00

Die Parthenogenesis und ihr Verhaltniss zu den Ubrigen Zeugungsarten im Thierreich

$300.00

10 offprints by Don Wayne Fawcett 1947-1974 The Fine Structure of Bat Spermatozoa and others

$250.00

Inheritance in Maize

$250.00

TRYPTOPHAN BIOSYNTHESIS IN Salmonella Typhimurium

$325.00

BOOBS as seen by John Henry

$250.00