the country whit which this report is concerned was was officially know as Siam before 1939 and for the short period from 1945 to 1948 , but for the sake of convenience the name Thailand , the present official name of the country . has been used for all periods.
A basically phonetic system of transliteration of Thai name and terms has been used. The system is that recommended by the Royal Institute of Thailand in 1939 and outlined in the Journal of the Thailand Research Society of March,1941.