Crusell, Bernard, swed. Clarinetist and composer of Romanticism, wrote numerous clarinet concerts (1775-1838). Eigh. Letter from the U. "B. Crusell". In swed. Language. 3 pp., closely described. Double page with address. Gr. 4to. Linköping 22.VI.1836. To the great Swedish physician and chemist Jöns Jakob Berzelius (1779-1848) in Stockholm. Extensive letter on musical themes, concerning above all his activity as musical director of the two royal body regiments.