The elements of navigation : containing the theory and practice, with all the necessary tables, to which is added, a treatise of marine fortification ...
A two-volume English navigation manual by John Robertson, master of the Royal Mathematical School, printed in London by J. Nourse in 1754 for naval officers, pilots and students, with tables and a treatise on marine fortification. The plates are woodcut and engraved geometry: labelled circles crossed by solid and dotted arcs, spherical triangles, compass roses, coastal profiles and bastion plans, usable as line-only diagram stock.
