12 Upper Gower Stt.
Saturday Evening
Dear Babbage
I am exceedingly sorry that I troubled you unnecessarily for an extension of your kind invitation, as I happen to be so unwell to day, that I am quite unable to come.—
Pray excuse me having troubled you & believe me Yours very truly | Chas. Darwin
Please cite as “DCP-LETT-476,” in Ɛpsilon: The Charles Darwin Collection accessed on