"A Multiple Rainbow Seen on the St. Lawrence River"

Copy of an article written by Allie Vibert Douglas entitled "A Multiple Rainbow Seen on the St. Lawrence River," reprinted in booklet form from the Journal of Royal Astronomical Society of Canada, October 1929. An article based on Allie Vibert Douglas' own sighting, for the first time, of a double rainbow in the Gananoque/Thousand Islands area, intended to publically record the phenomena.