IV CONTENTS. 



Notes and Queries : — Moisture u. Light in the Develop- 

 ment of Stands— The Use of Pigs in Prepa.ring Ground 

 for Re-planting — Use of Small Plants in Re-stocking 

 Cleared Ground— A Little-Known Pine Beetle — Spruce 

 Aphis Attacks : A Word of Caution — The Occurrence of 

 the Phomopsis Disease of the Japanese Larch in York- 

 shire—Professor Sir Isaac Bayley Balfour's Retirement 



Obituary: — Mr Charles Macintosh— Mr Alexander M'Rae 

 — Mr Alexander Forbes Irvine, of Drum— Mr George 

 Fraser ....... 



15. Report of Forestry Commission, 1920-21 



16. Farm Forestry. By A. W. Borthwick, D.Sc, O.B.E, 



17. Silviculture in Trinidad. By G. I. Campbell . , 



18. Forest Insects on the Culbin Sands. By J. W. Munro, D.Sc 



118 

 121 

 124 

 132 

 136 



19. Form-Factor as an Expression of the Degree of Taper in 



Coniferous Trees. (With Figures.) By Mark L. Anderson 141 



20. Logging in North-West America (British Columbia and 



Pacific States). (With Plates.) By James Kay . 152 



21. Continental Notes— France. By A. G. Hobart- Hampden . 158 



22. Sample Plot Investigations in Scotland. By H. M. Steven, 



Ph.D 166 



23. The Douglas Fir Chermes . . . . 171 



24. Some Remarks on British Forest History. By H. G. 



Richardson. (Continued from Vol. xxxv. p. 166) . 174 



25. The Geographical Range of Sitka Spruce, Western Larch, 



and Douglas Fir. By James Kay . . . i97 



26. Report of the Annual Excursion. By R. A. Galloway, B.Sc. 202 



27. Empire Forestry . . . . .215 



28. Report on the Forestry Exhibition at the Highland and 



Agricultural Society's Show. By Johnston Edwards . 218 



29. Report of Estate Nurseries and Plantations Competitions, 



1922 ........ 223 



30. Studies in the Pathology of Young Trees and Seedlings. 



(With Plates.) By Malcolm Wilson, D.Sc, F.R.S.E., 



F. L.S., Lecturer in Mycology, University of Edinburgh , 226 



Obituary :— Sir Isaac Bayley Balfour, K.B.E., F.R.S.— 



Henry J. Elwes ...... 236 



