370 
I feel certain that this system of cultivation will give a larger 
percentage of tappable trees at a given age than any other. Trees 
growing in land thus treated must have a more vigorous, healthy 
and longer life than trees grown in 'clean weeded, undulating soils 
denuded year after year of all surface soil and humus. 
The cost of changkoling four times a year is not more than 
ordinary clean weeding. The one thing that must be absolutely 
certain in this class of cultivation is your labour supply. This must 
be sufficient to come back on the area changkoled once every three 
months for certain. 
Approximate cost of changkoling in average land, not big lalang: 
A fairly low average for this work per man is 2 acres pei 
month of 25 days work. 100 coolies with an out-turn of 80% (very 
low), constantly at work, will changkol 200 acres per month, i.e., 
600 acres per 3 months. 
COOLIES. 
C. The argument put forward above for the utmost well being 
of each individual rubber tree apply with still greater force to each 
individual coolie on the Estate. No expense or trouble is too great 
that will ensure a well housed, healthy and contented labour force. 
WORK IN RETAIL. 
Daily Muster and Distribution of Coolies. 
D. All coolies on the Estate of whatever description, then, 
women, and children, indentured and free, married and single, watch- 
men, cartmen, &c„ are to be turned out for muster every morning, 
including Sundays, .by the Manager, or European Assistant, and the 
Apothecary, counted, medically inspected, and treated. 
All coolie lines, drains, water installations, and latrines, are to be 
inspected daily by the Manager or one of the European Assistants. 
HOURS OF MUSTER. 
Free. 
Free coolies to be mustered and medically inspected at 5.30 
morning muster only. Sundays excepted. 
Indentured. 
All Indentured coolies, together with their wives and children 
living on the Estate, are to mustered twice daily in their respective 
gangs ; 
Once every evening in the presence of the night guard before 
being handed over to fliem, and the number recorded and certified by 
the Manager or European Assistant in Night Muster Book. 
