| Description | Written from 18 Duke Street, Westminster, London. The letter remarks that about two thirds of the length of Brunel's big ship has been completed and wonders if Fox thinks that watching as the construction continues might yield interesting and useful results in determining whether the amount and position of local magnetic influence increases and whether the position of the place of minimum magnetic disturbance changes with the additional construction. The letter also wonders if Brunel's assistant might, under Fox's instructions, carry out the experiments. |