Has drawn all three forms of primroses CD sent "with same result". Has found no pink variety with middle style.
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Has drawn all three forms of primroses CD sent "with same result". Has found no pink variety with middle style.
Sends drawings of the pollen from Chinese Primula plants with styles and pistils of different lengths; observations on sizes and condition of their pollen.
Instructions concerning the payment of the principal and interest of the mortgage to Mr Childe.
Observations on [length of style and length of filament and stigmas of] Pulmonaria.
Describes difference between Pulmonaria flowers; wishes to know whether it is general.
CD is right about variability [of Pulmonaria]. Encloses observations and diagrams of additional plants.
[Outline sketches of pollen from long- and short-styled yellow cowslips and from red cowslip, magnified 350x.]
Writes of dimorphic plants.
Thanks WED for measuring cowslip pollen. Sends dimorphic flowers.
Experiment instructions.
Diagrams of short- and long-styled Pulmonaria under magnification.
Observations on style length of 150 flowers of Pulmonaria [angustifolia]. [See Forms of flowers, p. 105.]
Instructions on measuring pollen of dimorphic plants.
Discusses WED’s observations on polymorphic flowers.
Sends Pulmonaria anthers, with measurements of styles and pollen counts.
Mentions WED’s extraordinary discovery of some pollen-grains of different sizes. The observations must be followed up.
Sends specimens of Menyanthes with observations and drawings [see Forms of flowers, p. 115].
[Outline sketches of pollen from long- and short-styled yellow cowslips and from a red cowslip.]
CD much obliged for specimen and drawings.
Clarifies his letter of 18 May [4500].