Author: Lowe, Percy R.
Title: On the Systematic Position of the Swifts (Suborder Cypseli) and Hummingbirds (Suborder Trochili), with special reference to their Relation to the Order Passeriformes.
Description: London: Zoological Society, 1939. First edition Pp. 38, 4 full page monochrome plates, 1 text-figure. Original printed blue wrappers, folio. London, 1939. Transactions of the Zoological Society of London, volume 24, part 4. Single institutional stamp on the wrapper, no other ownership marks and no signs of use. The text, plates and wrappers are bright and clean, a tight very good copy..

Keywords: Ornithology birds swifts cypseli hummingbirds trochili passeriformes


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