Down, | Beckenham, Kent. | Railway Station | Orpington. S.E.R.
March 12 1878
My dear Mr Smith,
I have thought that the enclosed specimens might interest you. As far as my ignorance permits me to judge, the great difference in the casts of workers seems very curious; & some of Mrs Treats observations on their habits.1 She has done some good work with plants.2 I do not want either the specimens or note returned. Should the facts be sufficiently new, I do not doubt that she would be much gratified by your mentioning the fact before the Entomological Society.3
Yours sincerely | Charles Darwin
Please cite as “DCP-LETT-11418A,” in Ɛpsilon: The Charles Darwin Collection accessed on