the Sun's Declination When Equal Altitudes Are Used to Regulate a Clock or Other Time Keeper. Communicated by Andrew Ellicott Esq." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 26–28. Robert Patterson and Andrew Ellicott. 1809. "Improved Method of Projecting and Measuring Plane Angles by Mr. Robert Patterson Communicated by Mr. Andrew Ellicott." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 29–32. Andrew Ellicott. 1809. "Astronomical Observations Made at Lancaster, Pennsylvania, Chiefly with a View to Ascertain the Longitude of That Borough, and as a Test of the Accuracy with Which the Longitude May Be Found by Lunar Observation; In a Letter from Andrew Ellicott to Robert Patterson." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 61–69. Andrew Ellicott. 1809. "Observations of the Eclipse of the Sun, June 16th, 1806; Made at Lancaster." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 255–260. Andrew Ellicott. 1809. "Continuation of the Astronomical Observations Made at Lancaster, in Pennsylvania." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 233–235. Jose Joaquin de Ferrer, Andrew Ellicott, Julian Ortis de Canelas and M. Mechain. 1809. "The Geographical Position of Sundry Places in North America, and in the W. Indies, Calculated by J. J. de Ferrer." Transactions of the American Philosophical Society, Vol. 6, (1809), pp. 221–232. Evans, Evan, Andrew Ellicott, and Oliver Evans. 1807. Patent cyder, or tobacco press. Philadelphia, Pa: s.n. A patent license. Title from caption of illustration; text begins: Explanation. A, the cheese of pumice, or hogshead of tobacco, &c. signed: Evan Evans. Testimonial signed and dated: Andrew Ellicott. Lancaster, Pennsylvania, June 2, 1806. Manufacturer's statement, dated "Mars works, Philadelphia, April 30, 1807" and signed: Oliver Evans. Illustration signed: F. Shallus engraver No. 80 South Front St. Philada. Printed on paper watermarked "W Young 1804" (Gravell 1054). Ellicott, Andrew. 1803. The journal of Andrew Ellicott, late commissioner on behalf of the United States during part of the year 1796, the years 1797, 1798, 1799, and part of the year 1800 for determining the boundary between the United States and the possessions of His Catholic Majesty in America, containing occasional remarks on the situation, soil, rivers, natural productions, and diseases of the different countries on the Mississippi, and gulf of Mexico, with six maps comprehending the Ohio, the Mississippi from the mouth of the Ohio to the gulf of Mexico, the whole of West Florida,