258 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



density of planting and the somewhat late commencement of 

 thinning must also be taken into account. 



At the time of the wind damage the plantation was in a 

 thoroughly healthy and flourishing condition, and the record of 

 this plantation shows what can be done in timber production 

 on a soil composed merely of sand and stones. As the 

 measurements show, the timber of the main crop, which does 

 not include the thinnings already removed and those deducted 

 in the present measurements, has been accumulating at the 

 rate of nearly 140 cub. feet per annum and that on an under- 

 bark measurement. 



REVIEWS AND NOTICES OF BOOKS. 



American Forest Regulation. By Theodore Salisbury Woolsey, 

 Jun., M.F. Published by The Tuttle, Morehouse and 

 Taylor Company, New Haven, Connecticut. 



In this book of about 220 pages the author has given a 

 very lucid description of what Forest Regulation means. The 

 subject of Forest Regulation (syn. organisation) is clearly 

 defined at the outset as : — that branch of forestry which 

 concerns itself with the organisation of a forest property for 

 management and maintenance, ordering in time and place the 

 most advantageous use of the property, with the aim of securing 

 a sustained yield. 



The relationship between Forest Regulation and the other 

 branches of forestry science is carefully defined and illustrated, 

 in the first few pages. 



Forest Regulation will naturally vary according to the con- 

 dition and extent of forests in different countries. Forest 

 Regulation in Europe, especially in France and Germany, has 

 a long history behind it. It has undergone development and 

 improvement from time to time as the condition of the forests ap- 

 proaches nearer to the " normal " or " ideal." Forest Regulation, 

 therefore, in such countries as are fortunate enough to possess 

 forests approaching the " normal," must aim at maintaining 

 them, at least, in their present condition, and, if possible, adding 



