Paper, 'On the application of the safety-lamp to the detection of benzoline vapour and other inflammable vapours in the air' by Frank Clowes Clowes writes: 'Since the vapour of benzoline and of petroleum spirit, when mixed with air, may become dangerously explosive and inflammable, it is found necessary to employ safety-lamps instead of naked lights to illuminate spaces which may contain such a mixture. The safety-lamp should accordingly be used in the neighbourhood of the oil tanks in petroleum-carrying steamers, in petroleum stores, and in chambers in which processes are carried on which involve the use of light petroleum oil.' Annotations in pencil and ink. Subject: Chemistry / Scientific apparatus and instruments Received 24 March 1892. Read 31 March 1892. Communicated by Henry Edward Armstrong. A version of this paper was published in volume 51 of the Proceedings of the Royal Society as 'On the application of the safety-lamp to the detection of benzoline vapour and other inflammable vapours in the air'. 1892