Sur la Raie dite de L'Helium.
Bruxelles: L'Academie Royale de Belgique, 1880. Paperback. Good plus in original, fragile, blue paper wrappers, some chipping and darkening, rear flap detached but present. Interior is clean, somewhat chipped and fragile. Pages uncut. In French. 20 pp. In wraps Science. SCI/10163. Good +.
Item #5161
Price: $25.00
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