RT Journal Article SR Electronic T1 On the results of the spectroscopic observation of the solar eclipse of July 29th, 1878 JF American Journal of Science JO Am J Sci FD American Journal of Science SP 121 OP 125 DO 10.2475/ajs.s3-17.98.121 VO s3-17 IS 98 A1 Barker, G. F. YR 1879 UL http://www.ajsonline.org/content/s3-17/98/121.abstract AB