TRANSACTIONS 



OF THE 



ROYAL 

 SCOTTISH ARBORICULTURAL SOCIETY. 



VOL. XXXVL— PART I. 



July 1922. 



A. W. BOETHWICK, D.Sc, 



HONORARY EDITOR. 



ROBERT GALLOWAY, S.S.C, 



SECRETARY AND TREASURER. 



EDINBURGH: 



PRINTED FOR THE SOCIETY. 



SOLD BY DOUGLAS &, FOULIS, CASTLE STREET. 



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