Part YI] Pearson: Note on Shorea robusta (Sal) Timber. 
25 
(i) (b) Logs seasoned for 7 years under a tin roof and then con¬ 
verted into scantlings. 
Notes. —Logs in not quite so good 3ondition as above. Major cracks from the centre 
had in nearly all cases extended to the circumference. The finer cracks were more 
numerous and on the whole penetrated deeper into the logs. 
(ii) Logs seasoned in the open for from 3 years and 5 months to 7 
years and then converted into scantlings. 
Notes. —This method of seasoning resulted in severe, compound, heart, radial and 
cup-shake developing in the timber. Both the size and depth of the major cracks were 
excessive, while a network of subsidiary cracks had also developed. The state of the 
timber was, in all instances, far worse than that of timber seasoned under shelter. 
(Hi) Logs immersed in water, then seasoned on land in the open, 
followed by conversion into scantlings. 
Notes. —At the time the logs were taken out of the water they had hardly cracked 
at all. Subsequently, while seasoning on land, they developed a certain number of 
major cracks, and their state was considerably worse than that of timber seasoned on 
land under shelter. The finer system of cracks did not develop seriously in these logs. 
(iv) Logs seasoned in open for upwards from 3 years and 3 months 
to 7 years and felled at different times of the year, followed 
by conversion into scantlings. These experiments were 
carried out by seasoning all logs in the open, so that the 
results are strictly comparative, the only divergent factor 
being that the trees from which the logs were prepared 
had been felled at different times of the year. 
(iv) (a) Trees felled in June. 
Notes.—O ut of 14 logs inspected, 5 were badly cracked, 6 showed moderate cracking 
and 3 were in good condition. 
(iv) (b) Trees felled in December. 
Notes. —Out of 12 logs inspected, 6 were badly cracked, 4 moderately so and 2 
were in good condition. 
(Hi) CONCLUSIONS ARRIVED AT FROM THE ABOVE 
EXPERIMENTS. —The logs seasoned in the shade under a thatched 
roof gave the best results, while those seasoned under a tin roof were 
not greatly inferior. 
Seasoning in the open gives distinctly inferior results to seasoning 
under shelter. 
Water seasoning in the og does not improve Sal timber, though 
it does not materially affect it either way. 
Felling the trees at the commencement of the monsoon or in the 
cold weather does not seem to affect the timber ; in any case, it leads 
to the majority of the logs developing cracks, if seasoned in the open. 
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