the House of Representatives. Andrew Ellicott. 1793. "Extract of a Letter from Andrew Ellicott, to David Rittenhouse, Esq. Dated at Pittsburg, November 5th 1787, Containing Observations Made at Lake-Erie, on That Singular Phenomenon, by Seamen Termed Looming." Transactions of the American Philosophical Society, Vol. 3, (1793), pp. 62–63. Andrew Ellicott. 1793. "Accurate Determination of the Right Ascension and Declination of β Bootes, and the Pole Star: In a Letter from Mr. Andrew Ellicott to Mr. R. Patterson." Transactions of the American Philosophical Society, Vol. 3, (1793), pp. 116–118. Ellicott, Andrew. 1792. Territory annexed to the State of Pennsylvania: containing two hundred and two thousand one hundred and eighty seven acres. Shows two sides of the stone boundary marker between Pennsylvania and New York. Ellicott, Andrew, and William Irvine. 1790. Plan of the town of Waterford, Pennsylvania. Photostats of original manuscript map done ca. 1795 located in the Pennsylvania State Archives. Includes legend. Alternate title: A correct Plan of the Town of Waterford and out-lots. Relief shown by shading. Description: 1 map on 2 sheets: photocopies; 52 x 72 cm. Other Titles: Correct plan of the town of Waterford and out-lots. Ellicott, Andrew. 1787. Ellicott's Virginia, Maryland, and Pennsylvania almanack, for the year of our Lord, 1788; being leap-year, and the twelfth year of American independence. Containing the motions of the sun and moon, the true places and aspects of the planets, the rising and setting of the sun, and the rising, setting, southing, and age of the moon, &c. Likewise, the lunations, conjunctions, eclipses, judgment of the weather, rising and setting of most of the principal fixed stars, length of days, and Quakers yearly meetings; days for holding courts in Pennsylvania, Delaware, Maryland, and Virginia; several valuable physical receipts; and some useful tables, both curious and interesting; with the remarkable American occurrences, &c. &c. The whole comprising a great variety of matter, both useful and entertaining. Winchester: printed and sold by Bartgis & Willcocks, at their printing-office, where all manner of printing is executed with fidelity and dispatch. Also to be had at the English and German printing-office, in Frederick-Town, Maryland." The astronomical part of this work was calculated by that ingenious mathematician Andrew Ellicott, Esq; of this state."—Preface. Ellicott, Andrew. 1790. "Description of the Falls of Niagara". The Massachusetts Magazine, or, Monthly Museum of Knowledge and Rational Entertainment. 2 (7). Pages 387–388. See also Clarksville, Mississippi, the last base