Apologises for not being able to send Yorkshire specimens of 'Saxifraga umbrosa', 'Carduus helenioides', and 'Rhodiola rosea'. Smith's "obliging letter" has led him to be so much more attentive to study of botany that he is to embark on a botanical excursion to Wales. Requests directions on procuring and preserving Lichens. Ponders the propriety of calling on Welsh botanists without formal introduction; would especially like to meet [John Wynne] Griffith [(1763-1834)] of Garn, Denbighshire.