Figure 13. — Alvan Clark & Sons factory. The telescope mount 

 and tube in the foreground were used for testing objective 

 lenses. From cover of Scientific American, 24 September 1887. 



tory in the Battlefield Park. When that observatory was demolished, in 

 1935, the telescope was given to the College des Jesuites (q.v.) in 

 Quebec, where it is still being used. 20 



Toward the end of the century the equipment of the Boston Uni- 

 versity observatory included a 5-inch Clark refractor, equatorially 

 mounted on a tripod. 21 



Roland B. Bourne of West Hartford, Connecticut, is the present 

 owner and user of the finder scope of the 9.4-inch Clark equatorial re- 



20 From private correspondence with Bernard Weilbrenner, Quebec Provincial 

 Archivist. 



21 Boston University Yearbook (1905), p. 71. 



44 



