Studies in Bird Migration
Being the Collected Papers of H. Chr. C. Mortensen, 1856–1921. Edited by Poul Jespersen and Å. Vedel Tåning. (Published by Dansk Ornithologisk Forening.) Pp. 272. (Copenhagen: Ejnar Munksgaard, 1950.) 18 kr.
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THOMSON, A. An Ornithological Pioneer. Nature 168, 216 (1951). https://doi.org/10.1038/168216a0
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DOI: https://doi.org/10.1038/168216a0