CONTENTS OF VOL. XXIII. 
Freshwater Alge from the Orkneys and Shetlands. (Pl. I. and II.) 
By W. West, F.L.S., and Professor G. S. West, M.A., F.L.S. 
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 Excursion in 1904. By 
Alexander Cowan : 
Notes on Mosses and Hepatics tafhentad Parle Gezeauion of Seottish 
Alpine Botanical Club in 1904, By L. J. Cocks . 
Notes on Puccinia graminis. By P. Joannides, B.Se. 
PRESIDENTIAL ADDRESS on ‘‘Herbaria and Biology.” By Professor 
Jaa ie Drain RES: : : : 
Alpine Flora and Rarer Plants of the telenshes District By William 
Young 
The Hepaties of the Gintates Distr a By walker woe 
The Botany of the South Orkneys. (Pl. III.) By R. N. usw 
Brown, B.Sc., C. H. Wright, F.L.S., and O. V. Darbishire . 
Note on Arenaria tenuifolia, Linn., as a Scottish Plant. By W. W. 
Smith, M.A, : : : 5 ; : 
On Drosera Banksii, R.Br. By Dr. Morrison : ; : : 
Acacias in Various Places: A Study in Associations. By G. F. Scott 
Elliot, M.A., B.Se., F.L.S. ; : : : : : 
The Extra-’ fronieil rece of Arran, By the Rev. David Lands- 
borough, LL. D., Kilmarnock 
The Savannahs of Guyana. By Eduard Essed : : 
Meeting of the Scottish Alpine Botanical Club, 1905, at Killin. By 
Alexander Cowan 
Notes on the Flora of the Coast ail slandls of Poreagdese East 
Africa, with Photographs of interesting Trees, pay and Forest 
Scenery. By J. A. Alexander. : : 
Note on Rhacomitrium ramulosum, By William Young 
Note on a Rare British Fern, Hah is fragilis, Yoni Baerereintin 
By William Young 
Note on Adiantum Capillus- rohan is. By D. S. Fish . 
Contributions towards the Botany of Ascension. By R. N. Budmoae 
Brown, B.Sc. 
PRESIDENTIAL ADDREsS for Session 1905-6. By Professor Bayley 
Balfour, F.R.S. 
PAGE 
101 
