The Seaman's Daily Assistant,

One of the first educational aides for sailors in recording navigational measurements during a voyage. This edition was the first to be reprinted in America, which was the first navigational guide of its type to be printed both sides of the Atlantic.

The work includes a table of difference of latitude to each degree, instructions for working out position according to Mercator, tables of high water, the sun's ascension and declination, and the positions of the stars.

Every edition of this work is scarce, due to the fact that it was a practical text which would have been carried by sailors on their many journeys. Initially printed in 1757, and their were over ten editions or versions printed prior to this one, which was the first chosen to be reprinted in the United States. There is only 1 UK institutional copy of this edition (Cambridge, not in BL) and 4 US copies.

Later edition; small 4to (20 x 16 cm); inscription to front pastedown dated 1911, lower margin corner of first few leaves a little nibbled; early twentieth-century calf to style, blind ruled boards, five gilt ruled compartments to spine, gilt red morocco lettering piece, a little rubbed, a very good copy; [viii], 160 pp.