16 RECENTLY ISSUED AND FORTHCOMING MONOGRAPHS. 



For the Seventy-ninth Year, 1922. 



108. The British Desmidiacese. By W. and G-. S. West. 

 Vol. V. By Nellie Caeter. With an Index to the whole 

 work, xxi + 300 + 78 pp., 39 plates (cxxix-clxvii) . 8vo. 

 1923. 



For the Eightieth Year, 1923. 



^ 109. The British Charophyta. By James Geoves and 

 Canon G-. R. Bullock-Wbbstee. Vol. II. Chareae, with 

 concluding articles and Index, xii + 129 pp., 26 plates (xxi- 

 xlv). 8vo. 1924. 



In Preparation. 



The British Hydracarina. By C. D. Soae and W. 

 Williamson. 



The British Sea Anemones. By T. A. Stephenson. 



ADI.ARD AND SON AND WEST NEWMAN, LTD., IMPB., LONDON AND DORKING, 



