...prepared and issued under the auspices of the Division of Geology and Geography National Research Council. Navy cloth 8vo, 149 (1)pp. Well illustrated with numerous in-text figures and charts and 15 photographic plates printed on 8 coated leaves inserted between 80-81. Very Good but for rubbing to the corners and joints which have been partially inked-over in black; sticker ghost and previous owner's signature to ffep, else clean and unmarked. In a Fair to Good (and uncommon!) dust jacket, cleanly split along the front joint and chipped along the edges, including a 2" loss to the top and .5" loss to bottom of spine, two additional chips about 1.5x.5" at the bottom edge and upper corner of the front panel. A visual delight, full of great atmospheric photographs of clouds and landscapes, snapshots of kite and balloon-wrangling, drawings of various assorted apparatus, and other engaging graphics.