BY THE SAME AUTHOR. 



FUNGI : THEIR NATURE, INFLUENCES, USES, &c. 



Edited by the R*v. M. J. Berkeley. With Illustrations. 

 Fourth Edition. Crown 8vo, 5s. 



INTRODUCTION TO FRESH WATER ALGiE, with an 

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LONDON : 

 KEGAN PAUL, TRENCH, TRUBNER & CO., Ltd. 



