4i 6 Authorities and Books for Students 



writings. I have made also some little use of Grant's History 

 (already quoted), of Wolf, and of Miss Clerke's System of the 

 Stars. 



Students are recommended to read any or all of the first four 

 books named above ; the Memoir gives a charming picture of 

 HerscheFs personal life and especially of his relations with his 

 sister. There is also a good critical account of Herschel's work 

 on sidereal astronomy in Proctor's Old and New Astronomy. 



Chapter XIII. Except in the articles dealing with gravita- 

 tional astronomy I have constantly used Miss Clerke's History 

 (already quoted), a book which students are strongly recom- 

 mended to read ; and in dealing with the first half of the century 

 I have been helped a good deal by Grant's History. But for 

 the most part the materials for the chapter have been drawn 

 from a great number of sources consisting very largely of the 

 original writings of the astronomers referred to which it would 

 be difficult and hardly worth while to enumerate ; for the lives 

 of astronomers (especially of English ones), as well as for recent 

 astronomical history generally, I have been much helped by the 

 obituary notices and the reports on the progress of astronomy 

 which appear annually in the Monthly Notices of the Royal 

 Astronomical Society. 



I add the names of a few books which deal with special parts 

 of modern astronomy in a non-technical way : 



The Sun, C. A. Young ; The Sun, R. A. Proctor ; The Story 

 of the Sun, R. S. Ball ; The Suns Place in Nature, J. N. 

 Lockyer. 



The Moon, E. Neisori ; The Moon, T. G. Elger. 

 Saturn and its System^ R. A. Proctor. 

 Mars, Percival Lowell. 



The World of Comets, A. Guillemin (a well-illustrated but 

 uncritical book, now rather out of date) ; Remarkable 

 Comets, W. T. Lynn (a very small book full of useful in- 

 formation) ; The Great Meteoritic Shower of November, 

 W. F. Denning. 

 The Tides and Kindred Phenomena in the Solar System ^ G. H. 



Darwin. 

 Remarkable Eclipses, W. T. Lynn (of the same character as 



his book on Comets.) 

 The System of the Stars, A. M. Clerke. 



Spectrum Analysis, H. Schellen ; Spectrum Analysis, H. E, 

 Roscoe. 



