[231a] Originally published in the proceedings of the Cotteswold Nat. Field Club, 1918, under the title, “The Effects of the Cold Spring of 1917 on the Flowering of Plants.”

[231b] A Naturalist’s Calendar kept at Swaffham Bulbeck, Cambridgeshire. By Leonard Blomefield (formerly Jenyns). Edited by Francis Darwin. Cambridge: at the University Press, 1903.

[232] I am also indebted to Mr Embrey for his kind help in this matter.

[233] Kjellman, in Nordenskiold’s Studien und Forschungen, 1885, pp. 449, 467.

[234] Botan: Zeitung, 1877.

[235] A Naturalist’s Calendar, p. xii.

[237] The Times Literary Supplement, 12th January 1917, p. 326.