From:
Henry Kater
To:
Mary Somerville
Date:
16 Nov 1821
Source of text:
MSK 1 / 36, Dep. c. 371, Bod, MS
Summary:
No summary available.
Contributor:
Brigitte Stenhouse
No summary available.
Collecting English observations of eclipse of 7 Sept. 1820 for H. J. Walbeck. Construction of object glasses.
Delivered R.S.L. resolution on 'Junction of French & English triangles' to François Arago. Arago alone will meet HK and T. F. Colby to finish triangles this summer. J. B. Biot will collaborate next year with HK on pendulum measurements.
Sends set of William Herschel's duplicated papers. Curious results 'examining the rings,' but bad weather has hampered experiments. Correction of spherical aberration. JH is using J. d'Alembert's Opuscules. Image of Alpha Lyrae.