Letter from Sir James South, Observatory Kensington, to [Prince Augustus Frederick, the Duke of Sussex], President of the Royal Society Requesting information on the location of [Michael] Faraday's telescope and [Peter] Barlow's construction from [John] Dollond and Barlow. This relates to South's order from the Lords of the Treasury to enquire about the state of optical glass making in the country. [Request granted by Council on 14 April 1836.] 7 April 1836