VU APPENDIX. 



and before any of his contemporaries the two faint satellites, 

 while Struve probably saw Fmbriel on one or two occasions, and 

 that these inner satellites have not all been seen with any tele- 

 scopes save the twenty and forty feet reflectors of Herschel, the 

 telescopes of Mr. Lasseli (two and four feet reflectors) and by 

 the Clark refractor at Washington. 



The great reflecting telescope of Dr. Henry Draper, and the 

 Clark refractor at Chicago, and Mr. Newall's Cooke refractor, 

 have never been used upon these objects so far as I know, 

 although all three are undoubtedly adequate to the purpose. 



(36) 



.m 



