Thomas Manning lived in Asia from 1807-1817, mainly in Canton and Macao. But he also tried to reach the interior of China via Tibet. The correspondence covers this period and is of both official and personal nature.

These 4 letters concern Abel Yen's service to Manning and the use of his dictionary.

• Letter from Abel Yen to Thomas Manning after his recommendation by Elphinstone. He mentions Elphinstone and Ball and the dictionary in his possession. Undated, handwritten in Latin, 1 piece, 1 side
• Note from Abel Yen to Thomas Manning to accompany his dictionary. Undated, handwritten in Latin, 1 piece, 1 side
• Letter from Abel Yen to Thomas Manning. He mentions a letter from Ball. Undated. Handwritten in Latin, 1 piece, 1 side
• Letter from Abel Yen to Thomas Manning. Undated, Handwritten in Latin, 1 piece, 1 side.

"Notes" Notes made by Manning during 1807 from his reading, and on observations in Canton. Handwritten notes, strung into folder. 5 pieces, 20 sides