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Dobzhansky, Theodosius and others 60 offprints from 1928 to 1962 including his 1934 Studies on hybrid sterility: I. Spermatogenesis in pure and hybrid Drosophila pseudoobscura his part of the Bateson?Dobzhansky?Muller model

$1,000.00

Two Essays on the Law of Evolution. I. The Law of Natural Selection Applied to Man. II. The Evolution of Our Moral Life

$450.00

20 scarce offprints from Artificial Insemination Pioneer John Hammond 6 inscribed

$750.00

Gene Expression in Interspecific Hybrids, II. RNA Synthesis in the Lethal Cross Arbacia Lixula (♂) X Paracentrotus lividus (♀)

$500.00

7 rare offprints by Nobel Prize Winner Charles Huggins

$1,250.00

Ergebnisse uber die Konstitution der chromatischen Substanz des Zellkerns

$1,000.00

22 offprints by Viktor Hamburger. One with Rita Levi-Montalcini

$550.00

21 offprints dated 1914 ? 1940. 2 with the author's compliments R.C. Punnett

$1,000.00