140 
Indian Forest Records. 
[VOL. IX 
APPENDIX II. 
Detailed Instructions for the Conduct of Seasoning Experiments 1918.* 
At first sight these may appear more formidable than is actually 
the case. They are, however, only in the nature of suggestions based 
on the experience gained in carrying out the first seasoning experi 
ments and need not necessarily be rigidly adhered to in every case 
The experiments fall under 4 main heads, viz. : — 
1. Natural seasoning in the log under cover for 18 months followed 
by conversion and stacking for 6 months. 
2. Green conversion and stacking for 2 years. 
3. Green conversion followed by ivater seasonmg for 3 months 
and stacking for 21 months. 
4. Girdling for 12 — 18 months followed by conversion and stacking 
for 6 to 12 months. 
Conversion by radial and tangential methods. 
Stacking . — Horizontal and vertical for planks only. 
Requirements. — Six logs for each of the above heads, i.e., a total 
of 24 logs per species under experiment, minimum length of log 
C — 10 feet. 
General Suggestions. 
1. Seasoning shed . — This need be of simple design only All that 
is required is a roof to protect the timber from rain and the direct 
rays of the sun. As the quantity of timber to be accommodated by 
the end of the experiment will be considerable it is as well to see that 
the selected site is adequate. 
2. All material should bo raised off the ground during the process 
of seasoning. 
Methods of conversion. 
1. Radial conversion . — Under this method the logs should be cut 
on the quarter, see attached diagramatic sketch. 
2. Tangential conversion . — As in attached diagramatic sketch. 
N.B. — In plains divisions it is inadvisable to carry out conversion 
during the hot weather months. 
Methods of stacking. 
1. Horizontal stacking. — A most important factor is to select level 
ground on which to stack the timber. Each piece must be kept 
separate from the next for the free circulation of air by placing wooden 
wedges between the planks, see diagramatic sketch attached. 
*Note. — These instructions were prepared by R. S. Pearson, Forest Economist, 
and sent out to the Divisional I'orest Officers at the time the experiments were 
started in 1918. 
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