PERIODICAL LITKRATURE 615 



The organization proposed places the forestry branch not in the 

 hands of a technical forester, but of an officer of "approved financial 

 and administrative ability," with, however, an expert advisory board 

 of at least four members. Not only are the native forests to be aban- 

 doned, but none but exotic species are recommended for planting, for 

 which the employment of prison labor is suggested. 



Schlich is showing up the incongruities of the scheme. 



Forestry in the Dominion of New Zealand. Quarterly Journal of Forestrj', 

 January, 1918, pp. 1-28. 



Although the learned dendrologist is not in 

 Length doubt as regards the manner in which trees grow 



Grozi'tli m height and is convinced that a nail driven into 



of it docs not change its position in relation to any 



Trees other jjoint vertically, the Indian Trigonometrical 



Survey, at the request of the Forest Dejiartment, 

 has taken pains to verify the latter fact by establishing field bench- 

 marks on trees and twice yearly for three years reading the levels on 

 ten trees. The tabulated results show no change in the elevation of 

 the marks except the very small fractional error which is chargeable 

 to readings of this sort. In such cases, however, where the bench- 

 marks are made by fixing the zinc plate horizontally to the bark or to 

 sapwood after stripping the bark, the growth in girth had actually 

 forced several of the plates from their nails, or they had at least been 

 distorted. 



Indian Forester, November and December, 1917, pp. 504-509. 



In the absence of more tangible data as to the 



lucrcment rate of growth in tropical forest, the somewhat 



in insufficiently based tables of yield given by Mars- 



India den are of interest. There are six pages of them, 



referring to 22 species and nearly 500 items ; the 



age is not always stated, but in most cases is for young stands below 



60 years, in a few cases going over 100 years, and a verv few over jog 



years. The number of trees per acre and the annual increment per 



acre in cubic feet are stated. It is apparent that the number of trees 



are not for full stands, but the accidentally present of a given species; 



thus for the valuable Slinrea rohusta (Sal) the number runs from 80 



to 1.707 and the increment from 43 to 187 cubic feet. The highest 



rate for native species, Ccdrus deodara, 60 years old was 340 cubic 



feet per acre per year, while 30 to 40 year eucalypts planted made 474 



