Thomas Manning was admitted to Cambridge University to study mathematics. He was very able and though did not graduate, he continued in teaching position at Cambridge for some time beforel he travelled to France to study Chinese. He was keen to develop new theorems. He published a mathematical text and corresponded with other mathematicians.
His interest in mathematics was lifelong - this subseries contains notes made on the back of letters postmarked as late as 1837.
There are both notebooks, one of which appears to be a manuscript for a book, and assorted loose notes and calculations.