BRITISH 



FRESH-WATER A.LGM. 



EXCLUSIVE OF 



DESM1DIE.E AND DIATOMACE^E. 



BY 



M. C. COOKE, M.A., LL.D., A.L.S., 



Author of "Handbook of British Ftniyi," " Mycographia" "Illustrations 



of British, Fwuji" \c., \c. 



VOL. I. TEXT. 



WILLIAMS AND NORGATE, 



HENEIETTA STEEET, COVENT GAEDEN, LONDON; 



SOUTH FEEDEEICK 8TEEET, EDINEUEG-H. 

 LEIPZIG : F. A. BEOCKHAUS. NEW YOEK : WESTEEMANN & CO. 



18821884. 



