Paper, 'On the precession of the equinoxes' by Reverend Abram [Abraham] Robertson 43 pages of manuscript paper and one plate showing 11 geometric figures. Subject: Astronomy Published in Philosophical Transactions as 'On the precession of the equinoxes'. Read 20 November 1806. 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. Later published in full in the Philosophical Transactions. [1806]