Friendly criticism of Smith's book; wonders whether he relied too much on [Erasmus] Darwin who was "too poetical to be correct" and [William] Forsyth who was "too cunning" to be quite so pure as Smith supposes him. Pleased to hear that the second fasiculum of "Flora Graeca" is to be printed soon. Genus 'Silene' has always been obscure and remarks on this subject will be welcome.