AN INTRODUCTION то ASTRONOMY. IN A SERIES OF LETTERS, FROM A PRECEPTOR TO HIS PUPIL. IN WHICH THE MOST USEFUL AND INTERESTING ILLUSTRATED WITH COPPER-PLATES. BY JOHN BONNYCASTLE, PROFESSOR OF MATHEMATICS IN THE ROYAL MILITARY ACADEMY, THE SEVENTH EDITION, CORRECTED, AND GREATLY IMPROVED. Hic canit errantem Lunam, Solisque labores. VIRGIL. Into the heav'n of heav'ns I have presumed, MILTON. LONDON: PRINTED FOR J. NUNN; LAW AND WHITTAKER; CADELL |