RT Journal Article
SR Electronic
T1 On the parallelism of coal seams
JF American Journal of Science
JO Am J Sci
FD American Journal of Science
SP 367
OP 369
DO 10.2475/ajs.s3-7.40.367
VO s3-7
IS 40
A1 John Strong Newberry
YR 1874
UL http://www.ajsonline.org/content/s3-7/40/367.abstract
AB