Part I.] Pearson: Seasoning of some Indian Timbers. 
10 
seasoning in the log. The only marked point brought out by the experi¬ 
ments is that in Singhbhum seasoning in the log has resulted in serious 
damage by borers. 
(d) General remarks .—The timber is too well known to require descrip¬ 
tion. 
(27) Stephegyne parvifolia (Appendix IV-27). 
(a) Locality where tested. —South Chanda Division, Central Provinces. 
(b) Best method of seasoning. —The best results, which were even then 
not altogether satisfactory, were obtained by girdling trees and leaving 
them standing for 18 months, followed by 6 months’ seasoning in the 
plank. 
(c) Other methods of seasoning. —The season of felling does not appear 
to affect the timber. All timber seasoned in the log, either with bark on 
or with bark off, suffered from borers. Water seasoning in the log gave 
poor results. 
(d) General remarks. —Conversion of green logs, followed either by 
seasoning in a shed or immersion in water for 6 to 8 weeks might give 
-even more satisfactory results than girdling and should be tried. 
(28) Tectona grandis (Appendix IV-28). 
(a) Locality where tested. —South Chanda, Central Provinces. 
(b) Best method of seasoning — 
(i) Timber from the log. —The best results were obtained by girdling 
trees and leaving them standing for 2 to 3 years, followed by 
a 15 months’ seasoning period in the plank after conversion. 
(ii) Pole wood. —The best results were obtained by felling in August, 
immersing the poles at once in water for 2 to 3 months, 
followed by seasoning on land for 9 months. 
(c) Other methods of seasoning — 
(i) Timber from the log. —Cracking was excessive in timber cut from 
v logs felled in January and April, but not so marked in that 
felled in August. Green logs immersed in water for three 
months produced timber which was seriously cracked. 
(ii) Pole wood. —Poles felled in January and April, and seasoned 
either with bark on or with bark off, were badly cracked ; 
those felled in August were not so badly cracked as the above 
but more so than water seasoned poles. 
(d) General remarks. —When reviewing the results of these experi¬ 
ments, it must be borne in mind that they probably only apply to Teak 
grown in the dry zone and seasoned in a locality where temperatures 
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