Authors: A B Gahan

Published in Ohio Journal of Science, in 1922, in volume 22, pages 140-142

Created: 2011-06-04, modified: 2023-02-16

Authors: J S Hine

Published in Ohio J. Sci, in 1922, in volume 22, pages 143-147

Created: 2011-06-04, modified: 2023-02-16