6 books
Transactions of the American Microscopical Society, 1922, Vol. 41 (Classic Reprint)
Transactions of the American Microscopical Society 1921, Vol. 40 (Classic Reprint)
Transactions of the American Microscopical Society, Vol. 39 (Classic Reprint)
Limnology - Scholar's Choice Edition
Limnology
Limnological Methods