FORTHCOMING MONOGRAPHS. 23 



For thf Seventy-second Yi'ar, 1917. 



99. The Principles of Plant-Teratology. By W. C. WOKS- 

 DELL. Vol.1, xxix + 270 + 50 pp., 25 plates. 8vo. 1915. 



For the Seventy-third Year, 1916. 



100. The British Marine Annelids. By W. C. MC!NTOSH. 

 Vol. III. Part II. Plates, viii + 48 pp., 24 plates Folio. 

 1915. 



101. The Principles of Plant-Teratology. By W. C. 

 WORSDELL. Vol. II. xvi + 296 -f 56 pp., 28 plates (xxvi- 

 liii). 8vo. 1916. 



In Course of Publication. 



The British Freshwater Rhi/opoda and Heliozoa. By 

 the late JAMES CASH and G. H. WAILES. (Vol. V, Heliozoa', 

 will complete the work.) 



The British Charophyta. By JAMES GROVES and Canon 

 BULLOCK-WEBSTER. (Vol. I in the pi-ess ; Vol. II will complete 

 the work.) 



The British Marine Annelids. By Prof. W. C. MC!NTOSH. 

 The British Desmidiaceae. By W. and G. S. WEST. 



Preparing for Publication. 



The British Apterygota. By J. M. BROWN. 



The British Centipedes and Millepedes. By W. M. WEBB. 



The British Diatomacea3. By GEORGE WEST. 



The British Earthworms. By the Rev. HILDERIC FRIEND. 



The British Ixodoidea. By W. F. COOPER and L. E. ROBINSON. 



The British Orthoptera. By W. J. LUCAS. 



The British Trematoda. By Dr. WILLIAM NICOLL. 



Dec. 1918. 



