CONTENTS. 
Freshwater Alge from the Orkneys and Shetlands. By W. West, 
F.L.S., and Professor G. S. West, M.A., F.L.S. . 7 
Some Rare Caithness Plants. By J. Greg. Nicolson . 
Obituary Notice of the late A. P. Aitken, D.Sc. By Wm. B. Boyd . 
Report of Scottish Alpine Botanical Club. By Alexander Cowan 
Notes on Mosses and Hepatics collected during Excursion of Scottish 
Alpine Botanical Club in 1904. By L. J. Cocks . 
Notes on Puccinia graminis. By P. Joannides, B.Sc. 
Presidential Address on ‘‘Herbaria and Biology.” By Professor 
J. W. H. Trail, F.R.S. : : 2 3 : ; = e 
Alpine Flora and Rarer Plants of the Glenshee District. By William 
Young. = 2 : : F : ‘ 
The Hepatics of the Glenshee District. By William Young 
The Botany of the South Orkneys. By R. N. Rudmose Brown, B.Sc., 
C. H. Wright, F.L.S., and O. V. Darbishire 2 a F 
Note on Arenaria tenuifolia, Linn., as a Scottish Plant. By W. W. 
Smith, M.A- - : : : ; : ; 
On Drosera Banksii, R.Br. By Dr. Morrison 
