CON'IHNTS. 



PAGE 



Notes and Queries: — The Danger of Using Trees as Gate 

 and Fence Posts — Planting Scrub Areas — Pine Root 

 Aphis — A Parasite of the Poplar Saw-Fly — Dryocoetes 

 aini (Georg.): An Alder Bark Beetle (Scolytidae) new 

 to Scotland — Planting Distance for Douglas Fir — 

 The Midland Re-afforesting Association — The Ring 

 Wood Plantation, Murthly Estate .... 247 



Reviews and Notices of Books : — American Forest Regu- 

 lation. By Theodore Salisbury Woolsey, Jun., M.F., 

 Published by The Tuttle, Morehouse and Taylor 

 Company, New Haven, Connecticut . . . 258 



Notes on the Ceiriog Forestry Experimental Area of the 

 Denbighshire County Council. By Thomas Thomson, 

 B.Sc, University College, North Wales, Bangor . 259 



Webster's Foresters' Diary and Pocket Book, 1923. 

 Published by Messrs William Rider & Sons, London. 

 Price 3s. 6d. net ...... 260 



Sylva : Being the Annual Publication of the Edinburgh 



University Forestry Society. No. 3, 1923. Price, is. . 260 



