TREES AND SHRUBS OF SAVOIE. 1 25 



It is curious that while on the western side of the Little 

 St Bernard Pass pure spruce forms the timber-level at nearly 

 7000 feet, on the eastern or Italian side of the pass larch is the 

 only tree to be seen at the corresponding altitude. Larch, 

 however, is usually absent from calcareous rock formations, 

 while spruce is found on both calcareous and granitic rocks, 

 and the great line of demarcation between the two is in this 

 region. 



To those who delight in Alpine plants Savoy offers, perhaps, 

 the best field in Europe. The limestone mountains at the head 

 of the Val d'Isere are particularly rich in gentians, saxifrages, 

 sedums and many other Alpine genera. 



18. Report of the Annual Excursion. 



( With Plates.) 



The thirty-ninth Annual Excursion of the Royal Scottish 

 Arboricultural Society was held in Yorkshire in the first week of 

 August 192 1, and sixty members were present on one or more 

 days. On this occasion the whole of the party were able to be 

 accommodated under one roof at the Hotel Metropole, Leeds. 

 It consisted of the following, the names being arranged in 

 alphabetical order : — Stephen Ballard, Colwall, Malvern ; James 

 Baxter, Benarth, Conway ; F. Austin Bensted, Sittingbourne ; 

 C. W. Berry, Glenstriven ; Thomas Bryden, Ayr ; Charles 

 Buchanan, Penicuik [Convener of Committee); F. H. Burrows, 

 Little Tinton, Kent; H. M. Cadell, of Grange, Linlithgow; 

 J. M. Cadell, Foxhall, Kirkliston ; G. R. Christie, Fochabers ; 

 James Clyne, Banchory ; R. W. Cowper, Sittingbourne ; Henry 

 Dalziel, Invermay ; Miss De C. Lewthwaite Dewar, Glasgow ; Jas. 

 T. S. Doughty, Ayton ; J. C. F. Dunbar, Crathes ; Edwin C 

 Duthie, Aberdeen ; J. Edwards, Castle Kennedy ; John T. Ellis, 

 Fossoway ; Mrs Ellis, Fossoway ; H. Filmer, Sittingbourne ; 

 Alex, J. Finlayson, Newbattle; Geo. D. Forbes, Royal Botanic 

 Garden, Edinburgh; Robert Forbes, Kennet; C. P. Galloway, 

 Edinburgh; Geo. Galloway, Wellbank, Dundee; Robert Galloway, 

 Edinburgh {Secretary and Treasurer) ; Geo. G. Shirra Gibb, 

 Old Boon, Lauder; Dr Robert Shirra Gibb, Boon, Lauder; 

 E. C. Gilbert, Hexham ; George Halliday, Rothesay ; George 



