RT Journal Article SR Electronic T1 Researches in actino-chemistry; Memoir First; On the distribution of heat in the spectrum JF American Journal of Science JO Am J Sci FD American Journal of Science SP 161 OP 175 DO 10.2475/ajs.s3-4.21.161 VO s3-4 IS 21 A1 John William Draper YR 1872 UL http://www.ajsonline.org/content/s3-4/21/161.abstract AB