Paper, 'On the parts of trees primarily impaired by age' in a letter from T A [Thomas Andrew] Knight Esq to the Right Hon Sir Jos [Joseph] Banks Subject: Botany Published in Philosophical Transactions as 'On the parts of trees primarily impaired by age. In a letter from T. A. Knight, Esq. F. R. S. to the Rt. Hon, Sir Joseph Banks, Bart. K. B. P. R. S'. Written by Knight at Downton. Read 22 March 1810. Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 1, 1832. 26 February 1810