Part II 



Catalog of Astronomical Instruments 



Made and Remade by 



Alvan Clark & Sons, i844-i8gy 



This catalog includes all Clark instruments which have come to my 

 attention; omissions — there may be a great many — are unintentional. 

 The purpose of the catalog is twofold. Primarily it shows the extent to 

 which astronomical observatories built during the 19th century, espe- 

 cially in America, were equipped with at least some apparatus from 

 the Clark workshop. The second purpose of the catalog is to tell more 

 about the Clarks, for stories pertaining to the various instruments often 

 reveal personal characteristics as well as the professional accomplishments 

 of the makers. 



The catalog is arranged alphabetically by name of instrument owners, 

 both private persons and institutions; instruments which had several 

 owners are cross-referenced. Instruments of all sizes, and accessories as 

 well as major telescopes, are included in the catalog. In many cases the 

 smaller and more obscure instruments, simply because of their obscurity, 

 are described in greater detail than the better known ones. 



Mrs. Edwin A. Abbey owned a 5-inch aperture refracting telescope 

 mounted on a tripod, the lens of which was reputed to have been made 

 by Alvan Clark himself in 1871. Mrs. Abbey, nee Mary Gertrude Mead, 

 was a Vassar graduate and undoubtedly a student of Maria Mitchell, 

 as Miss Mitchell placed the order for the telescope. This instrument is 

 now at the Maria Mitchell Observatory (q.v.). 1 



In 1873 Abbot Academy, a girls' school in Andover, Massachusetts, 



1 From private correspondence with Dorrit Hoffleit of the Maria Mitchell Asso- 

 ciation. 



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