PART I. PAGE

PLANETARY DISCOVERIES BEFORE THE ASTEROIDS WERE KNOWN 9

DISCOVERY OF THE FIRST ASTEROIDS 11

TABLE I.--ASTEROIDS IN THE ORDER OF THEIR DISCOVERY 17

NUMBERS FOUND BY THE RESPECTIVE DISCOVERERS 23

NUMBERS DISCOVERED IN THE DIFFERENT MONTHS 25

MODE OF DISCOVERY 25

NAMES AND SYMBOLS 25

MAGNITUDES OF THE ASTEROIDS 26

ORBITS OF THE ASTEROIDS 28

TABLE II.--ELEMENTS OF THE ASTEROIDS 29