Ornament Details
062600020000060_0
initial
An essay, wherein a method is humbly propos'd for measuring equal time with the utmost exactness; without the necessity of being confin'd to clocks, watches, or any other horological movements; in order to discover the longtitude at sea.
printed for J. Morphew, in Stationers-Court, near Stationers-Hall
6
47
1218
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