Notes to New Edition of Hints on Silver-Glass Reflecting Telescopes Manufactured by Mr. G. Calver, F.R.A.S. — Reading edition

3 notes · Reading edition

LETTERS AND EXTRACTS FROM THE FOLLOWING GENTLEMEN. · Note 1LETTERS AND EXTRACTS FROM THE FOLLOWING GENTLEMEN. · Note 2LETTERS AND EXTRACTS FROM THE FOLLOWING GENTLEMEN. · Note 3
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