Author: Steenstrup, J.
Title: Undersögelser over Hermaphroditismens tilvaerelse I Naturen.
Description: Kjöbenhavn, B. Luno, 1845. 4to. 94p. with 2 nice folding lithographs. H.calf. = Rare monograph by this famous Danish zoologist, who wrote the famous: Om Forplantning... or on the alternation of generations in 1842. (See DSB vol. 13 p.9). This is his second book on this same subject and rather unknown.

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