1. A history of timber exports from thailand with emphasis on the 1870-1937 period
Colin De 'Ath

2. A revision of the genus boesenbergia kuntze (zinginberaceae) in thailand
Puangpen Sirirugsa

3. Remarkable new cases of moths deinking human tears in north thailand (lepidoptera thyatiriridae, sphingidae, notodontidae)
Hans Biinziger

4. Wildlife trade in lao p.d.r. and between lao p.d.r. and thailand
Sompoad Srikosamatara, Boun-oum Siripholdej and Varavudh Suteethorn