From W. T. Thiselton Dyer   23 July 1875

[Enclosure 1]

Potato vol. i. p. 330

There is an account of the wild Potato by Sabine (with a plate) Trans. Hort. Soc. vol. 5 pp. 247–259⁶

p. 331 The following may be interesting

“On peut accelerer la précocité en prenant des fruits provenant des fleurs les plus précoces. C’est peu le moyen que Knight a obtenu les pommes de terre si hatives de l’Angleterre. Une fois cette précocité fixée, at après tout ce n’est pour la plante qu’un état de nubilité plus prompt, elle se perpétue par les plantations de tubercules.

Morren, Instructions populairs sur les Pommes de Terre Sep^r. 21, 1845 p. 29⁷

p. 379 Dr. Marsters⁸ told me that Cedo nulli a small yellow chrysanthemum habitually produces branches with white flowers

I saw a case at R. Hort. Soc. Nov. 11. 74⁹

p. 397 117/ for Swayne read Goss

“the colour of the skin is modified when pollen ⁠⟨⁠of⁠⟩⁠ a differently coloured variety is used” This of course would be an alteration in the tissues of the female parent. The seed-coat in Leguminosae represents the ovular coats + the residue of the nucleus 

In Goss’s experiments M^r Knight considers that the cotyledons only were changed and were perceptible as blue through the semitransparent seed-coats which remained white   see Trans. Hort. Soc. vol 5 p. 379¹⁰

p. 399. 122/ Trans. Hort. Soc. vol. iv read vol iii¹¹

p. 400 note 124 line 1 for see ‘Proc. read see ‘Journ.’¹²

p. 401 note 130 line 3 for ‘Proc. Hort. Soc.’ read ‘Journ. Hort. Soc.’¹³

note 131 see also 1749 but I have no note of the page¹⁴

note 132 line 2 for 63 read 65¹⁵

note 138 see also Agricultural Gazette. 1873 p. 1714¹⁶

⁠⟨⁠several lines excised⁠⟩⁠

p. 343 D^r Boswell Syme¹⁷ told me that it is the Early varieties that fruit. See also accompanying letter from M^r Barron and foregoing remarks sub. vol. 1 p. 331 from Morren¹⁸

[Enclosure 2]

Royal Horticultural Society, | Chiswick Garden, W

July 19^th 1875

Dear Sir,

It is a fact so far th⁠⟨⁠at⁠⟩⁠ “the varieties of the ⁠⟨⁠potato⁠⟩⁠ which produce tubers very early in the season rarely bear flowers”¹⁹—but I do not think that any conclusion can be drawn from it—as the early varieties are mostly of one type—variations of the Ashleaf Kidney— There are early round Potatoes not so well known—that flower profusely—and a second early section—the Lapstone—flowers the most abundantly of all but never bears berries.

There are some late varieties that seldom flower, such as the Scotch Blue. were we to have as many varieties of this and to cultivate them as extensively as the Ashleaf—the rule would be applicable at the other end.

I am Dr. Sir | your obt. Ser | A. F. Barron

Prof. Dyer—