CONTENTS OF VOL. XXI. 



Ofkice-ISeaueus, 1896-97, 1807-98, 1898-99, 1899-1900, i., ix,, xvii., xxix. 

 Accounts, 1895-189(), 189(3-97, 1897-98, 1898-99, v., xi., xix., xxxi. 



President's Address, 1896 



Experiments with Nitragin. By William Somerville, D.tKc., D.Sc. 



Bacteria of the Soil. By R. S. MacDougall, M.A., B.Su. 



Excursion of the Scottish Alpine Botanical Club to Clova. By Dr. 



William Craig .......... 



Photomicrogra])hy of Oi>aque Stem Sections. By R. A. Robertson, 



M.A., B.Sc 



Part I. (with two Plates) 

 By R. A 



Histological Structure of Fossil Wood.': 



By R. A. Robertson, M.A., B.Sc. 

 A Method of Injection-staining Plant Vascular Systems 



Robertson, M.A., B.Sc 



Pyrus Aria and its Varieties in Arran. By Rev. D. Landsborougli 

 Gleichenias. By P. C. Waite 



President's Address, 1897 



Girth of Coniferous Trees at Braemar (with Plate). By R. Turnbull, 



B.Sc, and P. C. Waite 



Diameter-increment of the Wood oi' Coniferous Trees at Braemar 



(with Plate). By R. Turnbull, B.Sc 



Excursion of the Scottish Alpine Botanical Club to Killiu. By Dr. 



William Craig 



Apodya lactea, Cornu (with Plate). By R. Tuiubull, B.Sc. 

 Relation between the Colour of Daffodils and the Composition of the 



Soils in which they are grown. By A. P. Aitken, D.Sc 

 Hybrid Violas. By J. Grieve ...... 



Astragalus alpinus albus. By R. Lindsay 



Hybrid Veronica. By R. Lindsay 



President's Address, 1898 ...... 



Fusion of Nuclei among Plants. By P. Groom, M.A. 

 Andromeda Polifolia, Linn. By Symington Grieve . 

 Development of Quadrifoliar Spurs in Pinus Laricio, Poir (with 



Plate). By A. W. Borthwick, B.Sc. 

 Interfoliar Buds in Pines. By A. W. Borthwick, B.Sc. 

 Micro-Methods. By A. Lundie .... 



Contact Negatives for the Comparative Study of Woods (with Plate). 



By R. A. Robertson, M. A., B.Sc 



First Record of Plants from Hope Island, Barentz Sea. Collected by 



W. S. Bruce 



Ferns, Mosses, and Lichens of Rerrick. By Rev. G. M'Conachie 



1 

 20 

 25 



40 



44 



50 



54 

 56 

 62 



65 



87 



94 



104 

 109 



113 

 116 

 117 



118 



121 

 132 



144 



150 

 154 

 159 



162 



166 



168 



