MAI RANG 15 
such parts where no streams and rivers run and means 
of communicaticn are wanting. The trees grow very straight 
and are admirably suited for building, for Railway. 
sleepers, Telegraph poles, Bridge-timber, Tool-handles 
and Canoes. Straight trees for Bridge poles 14 m. in 
length have occasionally been met, but are rare. They 
can attain a height of 30 m. 
Mai Teng is rather hard to saw. If perfectly dry 
the wood weighs 950 kg. per cbm. P=374. 
The resin is white and is used with the oil of the 
Yang tree for overhauling boats and painting all sorts of 
vessels, roofs of boats, etc., to prevent leakage. The resin 
issuperior to Mai Rang resin which is generally mixed 
with the same. 
Resin (vernacular “Chan” ) is collected during the 
dry season in February and March. 
MAI RANG (Pentacme Siamensis) is a tree of the 
Dipterocarpeae. The flowers, which appear in March, are 
white or red witha fine odour; the bark is somewhat 
thicker than Mai Teng, and is a little darker but with 
vertical fissures. It is also more broken and irregular 
