Suggests sending plant specimens. Asks about visit of Emma and the boys.
Showing 1–20 of 27 items
Suggests sending plant specimens. Asks about visit of Emma and the boys.
WED has been collecting Lythrum plants. Numerical proportions of the three forms.
Bee with adhering orchid pollinia lent to Charles Daubeny. Pollen-masses shaken off but if CD still interested he is welcome to specimen.
Discusses Lythrum, "a really wonderful case"; asks WED to make observations and collect specimens; sends a diagram which shows what crosses he believes are fertile.
Would like George to watch bees visiting the flowers; wants some pods from different forms to compare shapes and count seeds.
No summary available.
Sends specimens of the three forms of Lythrum. Remarks on the numerical proportions of different forms.
Proportions of different forms of Lythrum.
Gives J. T. Rothrock’s observations on the structure and fertility of the two forms of Houstonia. Mentions his own observations on Rhexia virginica and Gymnadenia tridentata.
Finds many beautiful Epipactis specimens.
Their enumeration [of forms of Lythrum?] is invaluable. He will write later to explain what he is trying to prove about Lythrum through laborious crosses.
Asks for flowers of both forms of Hottonia to measure pollen and compare stigmas.
Has read CD’s long letter on Lythrum and agrees with it. Is examining the pollen of the different types.
Describes insects caught while visiting Lythrum.
No summary available.
Looked for Hottonia but with little success.
No summary available.
Muscular fibres of whale no larger than those of bee – evidence of a community of origin.
Problem of the abortive wings of ostrich in relation to conditions of their survival.
No summary available.
No summary available.
Breeding cells of Ligurian bee are larger than those of common bee. Thanks CD for comb.
Notes and observations on orchids.