MECHANICAL DRAWING. Langley, Batty, 1696-1751. Practical geo-
#XfE metry eee 1726. (Card 2) 2190 54 2 Pele, viij, eBay 136 Pe xli Ciises. x1) fold.
plates (incl. tables, diagrs.) 3h.5cm. Title printed in red and black. Plates xxx & xl misnumbered x0di & xlie "Errata": pecxvis Headpiece, 2d prelim. leaf, signed: F. Hoff- (Continued on next card)