RT Journal Article
SR Electronic
T1 Memorials of George Engelmann and of Oswald Heer
JF American Journal of Science
JO Am J Sci
FD American Journal of Science
SP 61
OP 69
DO 10.2475/ajs.s3-28.163.61
VO s3-28
IS 163
A1 Asa Gray
YR 1884
UL http://www.ajsonline.org/content/s3-28/163/61.abstract
AB