RT Journal Article SR Electronic T1 On the causes of deviation in elongated projectiles JF American Journal of Science JO Am J Sci FD American Journal of Science SP 190 OP 199 DO 10.2475/ajs.s2-29.86.190 VO s2-29 IS 86 A1 J. G. Barnard YR 1860 UL http://www.ajsonline.org/content/s2-29/86/190.abstract AB