474 Forestry Quarterly. 



in former exploitations and burned. The ashes were 

 then scattered over the treated area, which was subse- 

 quently planted with deodar or a mixture of deodar and 

 kil (Blue pine). Results have surpassed all expecta- 

 tions. T. S. W., Jr. 



Annual Regeneration of Deodar. Indian Forester, 1914, pp. 306-309. 



MENSURATION, FINANCE AND MANAGEMENT. 



The Hungarian Forstrat ]\Iarton de 



New Method Zsarolyan proposes a new way of esti- 



of mating closely the bole contents of stand- 



Cuhing ing trees by the introduction of what he 



Standing Timber calls conus cubic numbers. He starts 



with the idea that the upper diameter of 



whatever log length is considered can be more readily and with 



less error estimated in tenths of the measured b. h. d than in 



inches. If V is the volume, D the b. h. d, d the upper diameter 



and I the log length, then d=^(o..v)D and 



V = 



[D- D-1 ID- ri+o..v--l 



-+o.x=,-J^iX-=-[^-J Pit. 



i-|-o.x- 



The figures calculated for various .v are the conus cubic 



* 2 



numbers. The formula can, however, be still further simplified 



D-pi 

 into F=:— 5— (i+o.x)^l=D-o.3927( 14-0x^)1, and havmg ascer- 



o 



tained the values for (i-fox^) and carried out the multiplication 

 with 0.3927, we get rounded off conus numbers 



far x= I 2 3 4 5 5 7 8 9 

 40 40 45 45 50 55 60 65 70 



This series easily memorized does away with the need of tables 

 or cumbrous calculations: with the upper diameter estimated 

 as .5D the conus number, with which DXl must be multiplied is 

 also .5; for every additional tenth 5% is to be added, for every 

 tenth below 5% to be deducted. 



Neucs Verfahren znr Bestimniung des Kiibikinhaltcs von stehenden 

 Stamnien. Allgemeine Zeitschrift fiir Forst-u. Jagdwesen. March, 1914. 

 pp. 113-114. 



