Ars navigandi, or, Tables of longitude [microform] : for correcting the effects of parallax and refraction on the distances observed between the sun and moon, or moon and star, whereby the true distance is obtained ... / by Isaac T. Heartte.
- Baltimore [Md.] : Printed for the author by B. Edes, 1819.
39 p. : tables ; 23 cm.
- Early American imprints. Second series ; no. 48202.