From Francis Darwin [before 30 June 1872]1
New University Club, | St. James’s Street. S.W.
I managed to catch Garrod this morning at the Gardens—2 He doesn’t seem inclined to give a definite opinion even though quoted with all possible caution All he says is that it does not necessarily follow that the heart shall be doing more work when it is beating quickly— He thinks that something can be made out by taking a sphygmograph of a person in a state of fright, & he promises to do it as soon as he can—3 I send a photo of Joe, the pouting one is a failure I find, as the lips are all blurred, will you ask Bessy to put it in my book when people have looked at it4
Yrs affec | F Darwin
A. H. Garrod on relationship of heart-beat to amount of work done by heart.