HEATHCOTE (Captain Sir Henry). Treatise on Stay-Sails for the Purpose of Intercepting Wind between the Square-Sails of Ships and other square-rigged Vessels, Mathematically Demonstrating the Defects of those now in use, and the Eminent Superiority of the Improved Patent Stay Sails... Illustrated by Suitable Diagrams, and two Plates of Ships... to which is added, some Remarks on Proportioning the Jibs &c.1824

Published by Baldwin, Cradock, and Joy. First Edition, tall 8vo, [1]-7, [2], [8]-77, [1]pp., with errata leaf, 2 engraved plates (Royal Yacht under the patent stay sails & a Frigate under the old stay sails), 24 diagrams on 13 plates, a little foxed, nineteenth-century polished calf, marbled sides.