Page 
West, W., F.L.S., and G. S. West, A.R.CS. 
Desmids from Singapore. (Plates 8 & 9) .............. 156-167 
On some iJesmids of the United States. (With 7 woodcuts and 
Plates 16-18) 2.0... cee e 279-822 
WirLraAMS, FREDERIC N., F.L.S. 
A Revision of the Genus Areneria, Linn. ...........L.. 326-437 
WonsDpELL, W. C., F.L.S. 
On the Origin of * Transfusion-tissue " in the Leaves of Gymno- 
spermous Plants. (Communicated by Dr. D. H. Scott, F.R.S., 
F.L.S) (With 3 woodcuts.) ........... 0.0.0... 000 ee 118-122 
The Comparative Anatomy of certain Genera of the Cycadacee. 
(Plate 20)... eee cece eee eee 437-457 
