Abstract
Numerous quantitative investigations of lake and river plankton are recorded for this country, but there seems to have been little work done on quantitative studies of canal phytoplankton. The present quantitative investigation of one year on the phytoplankton of the White river canal in Indianapolis, Indiana, follows a previous year of study of the taxonomy and periodicity of the plankton flora of that canal. There are apparently no published records of quantitative studies of plankton made in the vicinity of Indianapolis.
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