While the work was in progress, some of the sketches appeared in "Good Words." The chapter on Brinkley has been chiefly derived from an article on the "History of Dunsink Observatory," which was published on the occasion of the tercentenary celebration of the University of Dublin in 1892, and the life of Sir William Rowan Hamilton is taken, with a few alterations and omissions, from an article contributed to the "Quarterly Review" on Graves' life of the great mathematician. The remaining chapters now appear for the first time. For many of the facts contained in the sketch of the late Professor Adams, I am indebted to the obituary notice written by my friend Dr. J. W. L. Glaisher, for the Royal Astronomical Society; while with regard to the late Sir George Airy, I have a similar acknowledgment to make to Professor H. H. Turner. To my friend Dr. Arthur A. Rambaut I owe my hearty thanks for his kindness in aiding me in the revision of the work.

R.S.B.

The Observatory, Cambridge.
October, 1895

CONTENTS.

[PREFACE.]
[INTRODUCTION.]
[PTOLEMY.]
[COPERNICUS.]
[TYCHO BRAHE.]
[GALILEO.]
[KEPLER.]
[ISAAC NEWTON.]
[FLAMSTEED.]
[HALLEY.]
[BRADLEY.]
[WILLIAM HERSCHEL.]
[LAPLACE.]
[BRINKLEY.]
[JOHN HERSCHEL.]
[THE EARL OF ROSSE.]
[AIRY.]
[HAMILTON.]
[LE VERRIER.]
[ADAMS.]

LIST OF ILLUSTRATIONS.

[Note of etext transcriber: The illustrations by be seen enlarged by clicking on them.]

INTRODUCTION.

Of all the natural sciences there is not one which offers such sublime objects to the attention of the inquirer as does the science of astronomy. From the earliest ages the study of the stars has exercised the same fascination as it possesses at the present day. Among the most primitive peoples, the movements of the sun, the moon, and the stars commanded attention from their supposed influence on human affairs.