AN INTRODUCTION TO AS T R O N O M Y. IN A SERIES OF LETTERS, FROM A PRECEPTOR TO HIS PUPIL. IN WHICH THE MOST USEFUL AND INTERESTING FAMILIARLY EXPLAINED. ILLUSTRATED WITH COPPER-PLATES. BY JOHN BONNYCASTLE, PROFESSOR OF MATHEMATICS IN THE ROYAL MILITARY ACADEMY, WOOLWICH. THE SEVENTH EDITION, AZ 422 LONDON: AND DAVIES; LONGMAN, HURST, REES, ORME AND CO.; 1816. |