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.

Observations on [length of style and length of filament and stigmas of] Pulmonaria.

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.]

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.]

Sends Pulmonaria anthers, with measurements of styles and pollen counts.

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.]

Clarifies his letter of 18 May [4500].

Encloses drawings of Menyanthes and Pulmonaria anthers.

Doesn't think will be able to find Buckthorn. Sends reference from Revue de Deux Mondes. Is settled at the Bank.