Speculum nauticum A looking-glasse for sea-men. Wherein they may behold, how by a small instrument, called the plain-scale, all nautical questions, and astronomical propositions, are very easily and demonstratively performed. First set down by John Aspley, student in physick, and practitioner of the mathematicks in London. The sixth edition. Whereunto are added, many new propositions in navigation and astronomy, and also a third book, shewing a new way of dialling. By H.P. and W.L., by John Aspley et al.

Title:	Speculum nauticum A looking-glasse for sea-men. Wherein they may behold, how by a small instrument, called the plain-scale, all nautical questions, and astronomical propositions, are very easily and demonstratively performed. First set down by John Aspley, student in physick, and practitioner of the mathematicks in London. The sixth edition. Whereunto are added, many new propositions in navigation and astronomy, and also a third book, shewing a new way of dialling. By H.P. and W.L.
Author:	Aspley, John
Author:	H. P.
Author:	W. L., 17th cent
Note:	London : printed by W. Leybourn, for George Harlock, and are to be sold at his shop at Magnus Church-Corner, in Thames Street, near London-Bridge, 1662

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Subject:	Dialing -- Early works to 1800
Subject:	Navigation -- Early works to 1800
Subject:	Nautical astronomy -- Early works to 1800
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