Previous methods of livelihoods in Nan province, including the government prior to the Siamese intervention.

September 1, 1960 A letter from Moerman to Dr. Sala Dasananda. Moerman expressed thankfulness for the provision of information from the analysis of the farmer’s choice between rice and glutinous rice.

A letter from Moerman to Thomas McHale, requesting ecological data and physiological differences between rice and glutinous rice. It also noted the crop selection of the farmers. Moerman asked about the use of symbols in the research.

A letter from McHale to Moerman about glutinous rice and white non-glutinous rice, and the genetic differentiations of rice.

July 23, 1960 A letter from Moerman to Thomas McHale, expressing thankfulness for the clarification of rice. Moerman described research in which he gained information from farmers in order to find selection of rice crop.

August 3, 1960 Letter from McHale to Moerman to express appreciation to Moerman for his picture of molasses making. He requested that more information be sent regarding the cultivation of sugar cane and sugar production.

August 24, 1960 A letter from Moerman to Thomas R. McHale, mentioning the receipt of pictures posted, and his willingness to give information about sugar production.

January 13, 1961 A letter from Moerman to McHale, related to images and information about the process of sugar making and product distribution.

Description of the operation of the grinder to press sugar cane.