Appendia. Vv 
1880, May 26th. 
An article which lately appeared in The Times in which the statement on the performance 
of the six foot-instrument which had appeared in Frazer's Magazine is renewed, and is now 
attributed to M. Struve, has called forth the appended letter from the Imperial Astronomer 
of Russia. 
“ Pulkova, 1880, April 14th. 
““My Dear Lorp Rosse, 
“Yesterday evening a friend conveyed tome a note inserted in The Times of April 3rd under the title 
‘Three Giant Telescopes,’ in which I am told of having expressed myself in a very uncourteous manner 
on the optical qualities of the great reflector constructed by your late father. I beg leave to say that 
those expressions are altogether invented by the anonymous author of the note, or, at least, quite a 
voluntary and thoroughly wrong interpretation of what I may have said. I am sorry my name is abused 
in such a manner by people who probably have a design of their own in depreciating the performance of 
the instrument, the construction of which marked in itself a high progress in optics and mechanics, and 
which in its space-penetrating-power has not had any rival until now, though certainly with regard to 
definition (particularly where the mirror is considerably out of horizontal position) there are other 
instruments superior to it. 
“Believe me, my dear Lord, 
“‘ Very truly yours, 
(Signed) “OTTO STRUVE. 
“Tf you think it proper, you have my full authority to publish these lines.” 
