32 
Indian Forest Records 
[Yol, VI 
TABLE X. 
Record of Powellized sleepers from Burma. 
Species. 
Date on which 
the sleepers 
were laid 
down. 
1 Number of 
sleepers 
laid down. 
Condition of Powellized 
sleepers on the 3rd June 
1916. 
Condition of 
untreated sleepers 
on 3rd June 
1916. 
Dipterocarpus tuber¬ 
culatus or ‘In’ wood 
About March 
1908. 
10 treated, 
10 untreated. 
The 6 left in 1915 are still 
in, all are rather bad, 
and 3 must be removed 
at once. 
The two remain¬ 
ing sleepers seen 
in 1915 have 
been removed 
rotten and 
cracked. 
Dipterocarpus alatus 
or ‘ Kanyin.’ 
Ditto 
Ditto 
The 5 remaining sleepers 
were removed in 1915, 
as all were cracked and 
rotten. 
All removed by 
1913. 
Homalium tomentosum 
Ditto 
Ditto 
The 3 remaining sleep¬ 
ers have been removed 
in 1916, all were cracked 
and rotten. Experiment 
closed. 
All removed by 
1911. 
Schleichera trijuga 
Ditto 
Ditto 
All removed by end of 1914, 
rotten and spikes not 
holding. 
All removed by 
1913. 
Terminalia belerica 
Ditto 
Ditto 
The 2 remaining bad sleep¬ 
ers left last year have 
been removed in 1916. 
Experiment closed. 
All removed by 
1909. 
Terminalia tomentosa . 
Ditto 
Ditto 
Six are left not rotten, 
cracked but serviceable 
for another year. 
All removed by 
1915. 
Careya arborea . 
September 
1907. 
9 treated, 11 
untreated. 
Four still left, fairly good, 
will last 2 more years. 
The remaining 4 
were removed 
in 1915, badly 
cracked and 
rotten. 
Pinus Khasya . 
Ditto 
Ditto 
♦Three still left, 2 will last 
for four more months, one 
must be removed at once, 
all r otting and splitting. 
Four removed in 
1908, and 7 re¬ 
moved in 1909. 
Experiment 
closed.] 
* Date of last inspection 18th June 1916.] 
The sleepers referred to above have been'in the line for eight years 
up to the date of last inspection. Sixty per cent, of the Dipterocarpus 
tuberculatus sleepers have lasted over eight years, three out of ten being 
left after that period, while the last of the untreated sleepers were re¬ 
moved after being seven years in the line. The Dipterocarpus alatus 
sleepers were all removed within eight years, 50 per cent, of them having 
lasted that period, while all the untreated sleepers of that species were 
removed within 5 years. The last of the Homalium tomentosum Bowel - 
lized sleepers were removed after 8 years, the untreated sleepers having 
lasted 3 years. The Schleicher a trijuga treated and untreated sleepers 
both fared badly, lasting 6 years and 5 years respectively. The difference 
[ 162 ] 
