Gives calculations on the structure of bees' cells.
To make sure that I now understand look at my diagram. The two : A, F in the hexagon the section of the Dodec.
Call CB radius of sphere (r) & CF radius of ⊙ in which the hexagon is inscribed r′, then
r′ : r :: .8165 : 1 in the bees hexagon r′ =
The distance from center to obtuse ∠ = r
.866 = 0in
Difference = 0.0075 or ¾ of
Make no scruple of asking any number of explanations, as it is very little trouble to me, & saves you bother.
Yours E D
- f1 2278.f1Dated by the relationship to the following letter.
- f2 2278.f2See enclosure.
- f3 2278.f3CD was eager to revise his calculations relating to the construction of bees' cells (see letter to W. E. Darwin, [26 May 1858]). Erasmus Alvey Darwin had helped him in the past with geometrical problems (see letter from E. A. Darwin, [May–June 1858], and Correspondence vol. 3, letter from E. A. Darwin, [May 1844 – 1 October 1846]).
- f4 2278.f4The enclosure is in DAR 48 (ser. 2): 46 in association with CD's notes on bees' cells.
- f5 2278.f5The note is in DAR 162: 48/2.