@article{504826, note = {Preface signed and dated: J. Clarke. Calne, Feb. 15. 1714.}, author = {Clarke, James,}, url = {http://library.usi.edu/record/504826}, title = {The mercurial chronometer improv'd or, a supplement to a book entituled, 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 Longitude at Sea. In which all Objections that are in the least rational are remov'd, and the Method confirm'd. By the author of that essay. [electronic resource] :}, publisher = {printed for J. Morphew in Stationers-Court, near Stationers-Hall,}, recid = {504826}, pages = {28p.,plate ;}, address = {London :}, year = {1715}, }