From:
Alexander Wight, Jr.
To:
Sir John Herschel
Date:
[9 April 1856]
Source of text:
RS:HS 18.247
Summary:
Lens safely returned. Not aware of lenses in 1851 Exhibition or of C. F. Sturm's solid lenses. Notes advantages of plate glass. Offers to make three foot by three foot square lens. Recognizes limitations for use in astronomy; hopes for other applications.
Contributor:
John Herschel Project