TRANSACTIONS 



OF TIIK 



ROYAL 

 SCOTTISH ARBOEIGULTURAL SOCIETY. 



VOL. XXXI. — PART I. 



January 1917. 



A. W. BORTHWICK, D.Sc, 



HONORARY EDITOR 



ROBERT GALLOWAY, S.8.C'., 



SECRETARY AND TREASURER. 



EDINBURGH: 



PRINTED FOR THE SOCIETY. 



SOLD BY DOUGLAS & FOULIS, CASTLE STREET. 





Price to Non-Members, 3, - 



BOTANICAX, 

 GARDEN. 



6 i^ii. 



