By SIMON NEWCOMB

Cloth 8vo $3.00 net


CONTENTS

PART I. PRELIMINARY SUBJECTS

Chapter I. Introductory. Notes and References.

Chapter II. Differences, Interpolation, and Development. Notes and References.

Chapter III. The Method of Least Squares. Section I. Mean Values of Quantities. II. Determination of Probable Errors. III. Equations of Condition. Notes and References.

PART II. THE FUNDAMENTAL PRINCIPLES OF SPHERICAL ASTRONOMY

Chapter IV. Spherical Coördinates. Section I. General Theory. II. Problems and Applications of the Theory of Spherical Coördinates.