جزییات کتاب
"For many decades the definitive guide to identifying microscopic living forms in freshwater has been the Fresh-Water Biology book authored by Henry Baldwin Ward and George Chandler Whipple, helped by a team of collaborators. This was first published in 1918 and although classifications regarding species and sub-species has shifted and changed (with resulting confusion) over the years, I believe it still stands, nearly 100 years later as a remarkable and invaluable guide. The illustrations - I assume before early cameras could be employed on a microscope - to me, serve even today as more powerful visual aids than modern photography."
- Microscopy-UK