RT Journal Article SR Electronic T1 Note on the viscosity of gases at high temperatures and on the pyrometric use of the principle of viscosity JF American Journal of Science JO Am J Sci FD American Journal of Science SP 407 OP 410 DO 10.2475/ajs.s3-35.209.407 VO s3-35 IS 209 A1 Barus, Carl YR 1888 UL http://www.ajsonline.org/content/s3-35/209/407.abstract AB