Sending JH some writings on geodesic measurements; reports the second measurement of annual parallax of 61 Cygni; comments on some other observations.
CD is led to believe there are no true permanently inbreeding, sexually reproducing beings. Thanks for replies to breeding questions.
Asks for clarification of Hippeastrum crosses: is selfing or crossing with individual of same species intended and was increased fertility due to constitution of foreign parent or due to the pollen coming from another plant? Has WH known any hybrid or mongrel to revert or to vary in a manner unlikely to be effect of soil?
Sends Journal of researches.
Has enclosed with the letter 'a letter sketch of the 40 feet [telescope] (as it now stands) made without hands, by Photography.'