1910.] Financial Aspect of Growth of Scots Pine. 189 



the best fungicide for general use against "black spot" or 

 "scab," and that the lime-sulphur wash is not to be regarded 

 as a substitute for it, but only as a spray to be used in certain 

 special cases, viz., on those varieties of apples which are 

 liable to "Bordeaux injury." 



THE FINANCIAL ASPECT OF THE GROWTH 

 OF SCOTS PINE.* 



Percival T. Maw. 



In view of the fact that extensive planting operations are 

 advocated by many foresters, I feel convinced that any careful 

 and logical consideration of the financial returns likely to be 

 yielded by the planting of any particular crop will be wel- 

 comed by all who have bestowed any careful thought upon 

 the possibility and advisability of any extensive schemes of 

 afforestation, and by all who have at heart the true interests 

 of British forestry ; and this, too, even though the results at 

 which I arrive are diametrically opposed to the opinions 

 expressed by others. 



Now, before it is possible to estimate the financial returns 

 of any particular crop, it is necessary to put forward certain 

 data, upon which all are agreed, as to the amount of 

 timber which is likely to be produced in a specified time. 

 Herein lies a great difficulty. I have myself published a 

 number of yield tables f based upon measurements which 

 I have taken in this country, but as they are not known to 

 all, and as there are many foresters of the Continental school 

 who pin their faith almost entirely to Continental methods 

 and Continental results, it seems to me that, in certain 

 quarters at any rate, it would eliminate the chief ground for 

 adverse criticism if I based my argument entirely upon a 

 Continental yield table. 



* In publishing this paper the Board must not be held to express an opinion on 

 the conclusions reached. In the absence of reliable data based on observations 

 drawn from trees grown in this country, calculations of the financial results of 

 afforestation must be more or less speculative. 



t In The Practice of Forestry. 



