The Surveyor General's Department in Calcutta purchases 50 copies of Captain John Henry Crisp's treatise on terrestrial longitudes - request of the Surveyor General [Major John Anthony Hodgson] to be sent a large telescope from England.
Experiments made by the Bengal Artillery at Dum Dum to demonstrate Lieut Colonel Charles William Pasley's plan for blowing open the gates of forts with bags of gunpowder.
Opinion of the Select Committee of Artillery that the cart and axletree invented by Mr Johnstone possesses no advantages over the one currently in use.
Transmission of certain maps to England by the Surveyor General of India [Major John Anthony Hodgson] - he proposes that some of them should be inserted in Arrowsmith's new Map of India.