As you have noticed hybrid Dianths,² you may like to hear that the summer before last I fertilised a poor single pale red Carnation with the pollen of a crimson Spanish Pink; and likewise a Spanish Pink with the pollen of the same Carnation.³ I got seed from both crosses in fair number; namely, 77 seed from two pods of the Spanish Pink, and raised plenty of seedlings. In the eyes of a florist they would be, I presume, quite worthless from their straggling habit; but they were showy, and like most hybrids produced during a long time an extraordinary abundance of flowers. They varied somewhat in colour, but in no other respect; and one variety was of a really beautiful pale crimson. Taken in a mass there was no difference between the reciprocal crosses. Not one plant of either lot set a single seed. One plant came up identical with the Spanish Pink; no doubt owing to a few grains of the pollen of the Spanish Pink not having been removed; for Gærtner has shown that this is sometimes the result when a flower is fertilised with mixed pollen.⁴ I may add that Gærtner raised many hybrids between various species of Dianthus. C. Darwin, Down, Bromley, Kent.