London
3 Jany 1872
My dear Mr Darwin
There are 4 stones down the midle 16 inches square.
3 at the sides 18 in x 8, 1, 12 x 8 in
1, 17 x 2 in, 1, 18 x 14 in 2 24 x 14 in
besides the 2 sides & top & bottom of the paved space, each 7 ft 2 by 3 ft 2.
But perhaps the best mode of estimate is as follows. I measured all the lines of the junction of the stones with the walls that bound the pavement, & of the stones with each other. The result is 39 feet 2 inches of narrow interspaces through which worms could come to the surface taking the whole 7 ft 2 in by 3 ft 2 in into account.1
I am sorry I have delayed a little & hope I am not too late for you. Daylight at this time of the year is rather scarce with me at home except on Sundays & Sir John Lubbocks holidays.2
Yours very sincerely | Andw C Ramsay
Please cite as “DCP-LETT-8141,” in Ɛpsilon: The Charles Darwin Collection accessed on