Salem: Sold by Cushing & Appleton, S. Lambert and J.W. Archer. T.C. Cushing, Printer, 1820.  pp. Stitched, untrimmed, bit of spotting along outer margins. Near Fine.
A rare and unusual publication. Four of the five known copies are in Massachusetts. Lambert explains "Variation of the Compass" and the meaning of "aberration of the needle," discusses the effects of refraction of the sun, coral shoals, tides and currents, and other subjects of interest to navigators. Singled out for particular mention are Maranham, The Roccas, Hughes Rocks, shoals and rocks of particular interest, St. Helena, Ice Islands. He also has material on the Marine Life Preserver, and the latest information on light houses around Massachusetts [including Baker's Island and Ten Pound Island] and Long Island.
The pamphlet was evidently prepared for navigators engaged in the China trade from the Salem area.
AI 1900 [12pp] [2- AAS, Essex Inst.]. OCLC 44530779 [3- Boston Athenaeum, MA Hist Soc, Clements]. Item #25655