22 Indian Forest Records. [Vol. IX 
Green conversion gave the best results. There was no cracking, 
splitting, or discoloration in the pieces so seasoned. 
Seasoning in the log resulted in a thick growth of black mycelium 
on the surface of all the pieces, which discoloured the wood and 
rendered it unfit for use. Also, the splitting was most pronounced 
under this method of treatment. 
The liability of this species to insect attack in the log and to 
damage by mould and decay necessitates prompt conversion as soon 
as possible after felling, followed by open stacking under protection 
from rain and direct sun. 
(2) Acrocarpus fraxinifolius (Appendix I — 2). Kalimpong Division, 
Bengal. 
The timber of this species seasoned easily and with few defects. 
There was practically no surface cracking, and but a slight amount 
of splitting, except in the widest boards. The sapwood of the 
unconverted logs appeared to be easily destroyed by decay and large 
borers, but the heartwood was quite immime. 
Green conversion gave the best results in that the splitting was 
reduced to the minimum, and the sapwood as well as the heartwood 
was undamaged by fungi or borers. 
Seasoning in the log and girdling gave the poorest general results, 
inasmuch as in both cases the sapwood was totally destroyed. Water 
seasoning and seasoning in the log increased the amount of spiitting 
considerably. 
For the best results this timber should be converted immediately 
after felling and carefully stacked under cover so as to accomplish 
prompt seasoning without exposure to the sun. 
(3) Aegle Marmelos (Appendix I — 3). Gonda Division, United 
Provinces. 
This species is to be classed among the refractory woods which 
season with a marked tendency towards surface cracking, cupping, and 
twisting. Such tendencies were accentuated, in this case, because 
of-the fact that most of the timber was cut from small logs. Damage 
by either "white ants or borers was negligible. Sapwood longicom 
beetles worked under the bark of the logs, but did not penetrate to a 
damaging extent. Unconverted timber was damaged by blue-stain 
both in the felled logs and in the girdled trees. There was no evidence, 
of decay even in those pieces which were piled in a poorly ventilated 
godovTi. 
Girdling reduced the surface cracking more than any other method, 
but the twisting and cupping, largely due to piling, caused sufficient 
damage to lower the general average below that of seasoning in the 
log and ivater seasoning . Moreover, the girdling resulted in more 
blue-staining than the other methods. 
[ 168 ] 
