"American Artillerist's Companion, or Elements of Artillery" by Louis de Tousard, volume 2 only of two volumes, published by C. and A. Conrad, 1809; also, "A Treatise on Artillery: to Which Is Added, a Summary of Military Reconnoitering" by H. Lallemand, vol.2 only of two volumes, printed by C.S. Van Winkle, 1820. Estimate $100-200
