Transcripts of three letters written to, and in the possession of, the Royal Society of Arts. The writers are T[homas] Johnes, from Clifton and from Hafod, co. Cardigan, 1800-1801 (the planting of alders by the writer in 1796, a drill machine invented by an ingenious tenant of the writer's, a request for models of a family mill and a lock, suggestions for agricultural premiums, comments on the writer's 'short pamphlet of advice' to his tenants), and James Todd, gardener at Hafod, 1800 (the planting of alders in 1797).