AN ELEMENTARY TREATISE ON PLANE & SPHERICAL TRIGONOMETRY, WITH THEIR APPLICATIONS TO NAVIGATION, SURVEYING, HEIGHTS AND DISTANCES, AND PARTICULARLY ADAPTED TO EXPLAINING THE CONSTRUCTION OF BOWDITCH'S NAVIGATOR, AND THE NAUTICAL ALMANAC. BY BENJAMIN PEIRCE, A. M., Perkins Professor of Astronomy and Mathematics in Harvard University. THIRD EDITION, WITH ADDITIONS. BOSTON: JAMES MUNROE AND COMPANY. M DCCC XLV. Math 8018.45 Borar Co2 2 Nov. 12, 1915 ary Transfered for MAY 1 & 1900 From the estate of Dr. Gustavus Hay Entered according to act of Congress, in the year 1845, by in the Clerk's Office of the District Court of the District of Massachusetts. Thurston, Torry, & Company, Printers, |