Pakt II. ] Statistics compiled in the Silvicvlturist } s office. 
a 
the result of careful and patient investigation amongst 
the records of 20 years. It represents the labour of many 
months and makes public data of great value. For the 
first time the exact outturn of different sizes of Deodar 
is known. The statistics about Teak in Allapilli are based 
on most elaborate and laborious research work carried 
out in South Chanda under the control of Mr. J. Donald 
by Mr. Muhammad Ismail. 
The object of publishing these statistics is to show the rate of growth 
and the outturn under present conditions. This is useful as indicating 
in some cases the need for alteration either of treatment or of species, 
while a basis is afforded to working-plans officers for framing estimates. 
But it is very necessary to bear in mind that in most cases the figures 
are incomplete, being based on comparatively few measurements, 
that they apply only to definite localities, and that with the exception 
of a few plots the trees have received practically no attention beyond 
protection. Any direct application of the statistics is therefore out 
of the question as yet. It is hoped that they may be suggestive, and 
that with the accumulation of further figures, which it is proposed to 
publish annually, a time will come when their practical application 
will be justifiable. 
The effect of locality and of various methods of treatment upon the 
increment can be ascertained only by means of comparative statistics. 
Hitherto, published statements of results in India have been almost 
entirely wanting. It is perhaps one of the facts most striking to an 
unprejudiced critic that there are so few data available upon which to 
found an estimate of yield or to base a judgment on the existing system 
of management. This is not the place to elaborate the reasons for 
this state of affairs; but exception will hardly be taken if the utmost 
stress is laid here upon the urgency of extending statistical work in 
different provinces by the agency of local research officers working on 
similar lines. Until some knowledge has been acquired of the increment 
to be expected from the more important kinds of trees grown under 
different methods of treatment in varying localities, the thorough appli¬ 
cation of sound financial principles to forestry in India is not possible. 
The Silviculturist wishes to acknowledge with grateful thanks the 
cordial co-operation and help of the following officers : Messrs. A. W. 
Blunt, F. Canning, J. Carr, M. W. Clifford, P. H. Clutterbuck, J. V. 
Collier, A. W. Dentith, J. Donald, P. J. Draper, A. N. Grieve, Lala Gulab 
Rai, H. H. Haines, C. M. Harlow, M. Hill, W. Jacob, R. Kirkpatrick, 
C. M. McCrie, Saiyid Mahdi Hasan, J. N. Oliphant, A. E. Osmaston, 
E. A. Smythies, C. G. Trevor, and R. S. Troup. 
EDWARD MARSDEN, 
Silviculturist . 
September 1916. 
[ 33 ] 
