Letter, regarding submission of paper on the temperature of wells and thermal springs from Thomas John Newbold to S H [Samuel Hunter] Christie Letter from Newbold to Christie enquiring as to whether his previous submission of the paper found at PT/29/1 had been received. Included are several temperature observations taken in 1838-1839 at Mangalore [Mangaluru, India] and sea temperatures between Bombay [Mumbai, India] and Suez [Egypt]. These observations were published as part of the paper. Subject: Geodesy Relates to paper published in Philosophical Transactions as 'On the temperature of the springs, wells and rivers of India and Egypt, and of the sea and table-lands within the tropics'. Written by Newbold in Bombay [Mumbai] and addressed to Christie at Somerset House, London. Abstract of paper 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 5, 1851. 15 July 1842