Air-Screws, an Introduction To the Aerofoil Theory Of Screw Propulsion

London: Crosby Lockwood And Son, 1916. First Edition. 8vo. pp. viii, 128 + 16(ads). frontis. cloth (lacking front flyleaf)

London: Crosby Lockwood and Son:, 1918. The second impression, 128 pages, plus the catalog of books published by Crosby Lockwood and Son. "The problem of determining the form of air flow generated by an aerofoil, moving through still air is one that has so far defied, mathematical analysis. This problem, which applies equally to water and other fluids is… Read more about this item

London: Crosby Lockwood and Son, 1916. Undetermined. very good. 1st printing. viii,128, 16 pages of adspp. Octavo. Original maroon cloth. Frontispiece. Numerous charts and diagrams. A half a page of pencil notes on the last page. an attractive clean copy. very good A very technical manual on the design of propellers… Read more about this item

London: Crosby Lockwood and Son, 1916. Octavo, burgundy red cloth with gilt spine lettering, blazon, viii, 128 pp., frontispiece, illustrated with diagrams and graphs, an additional 16 pp. of publisher's advertisement. Rubbed at spine ends, spotting on preliminary leaves, straight cut on front endpaper with no loss of text, otherwise a good copy. A scientific study of the theory… Read more about this item

London, Crosby Lockwood and Son, 1916.. v + 128 pp. + 16 pp. 8vo. Original red cloth, some flecking., foxing to endpapers, a very good copy.. First edition.