TABLE OF CONTENTS. 



PREFACE Page iii 



ASTRONOMY. By Edward S. Holden, U. S. Naval Observatory. Wash- 

 ington 1 



Introduction 1 



Nebulae and Clusters; Nebular Hypothesis; Construction of 



the Heavens 2 



New Stars; Variable Stars; Red Stars; Proper Motions, etc. . 7 



Double, Binary, and Multiple Stars 8 



Star Catalogues and Maps 10 



The Sun 12 



Solar Eclipses 15 



Transit of Mercury, May 6, 1878 24 



Transit of Venus and Solar Parallax 26 



The Discovery of Vulcan 27 



The Planets and Satellites 30 



The Moon 34 



Comets ; Meteor Streams 36 



Zodiacal Light ; Meteorites 37 



New Observatories, New Instruments, etc 37 



Astronomical Bibliography, etc 39 



Miscellaneous Notes 42 



Reports of American Observatories 46 



Allegheny City, Pa. : Allegheny Observatory 47 



Brooklyn, N. Y. : Private Observatory of H. M. Parkhurst 49 



Buffalo, N. Y. : Private Observatory of Henry Mills 49 



Cambridge, Mass. : Harvard College Observatory 49 



" " Physical Observatory of L. Trouvelot 51 



Chicago, 111. : Dearborn Observatory 53 



Clinton, N. Y. : Litchfield Observatory of Hamilton College 55 



Columbia, Mo. : Observatory of the University of the State of Mis- 

 souri k 



Columbus, O. : Ohio State University 58 



Easton, Pa. : Lafayette College Observatory 59 



Elizabeth, N. J. : Private Observatory of Charles W. Pleyer, Esq. ... 59 



Fordham, N. Y. : Private Observatory of W. Meikleham, Esq 60 



Fort Dodge, la. : Private Observatory of F. Hess, Esq 60 



Germantown, Pa. : Private Observatory of Henry Carvill Lewis, Esq. <i"> 



Gettysburg, Pa. : Observatory of Pennsylvania College ,; 1 



Glasgow, Mo. : Morrison Observatory *>4 



