24132
Date
Page.
1903.
June 29
0
June 30
12
August 13
1904.
13
February 18
15
PAPERS
RELATING TO THE
482
CLAYTON PROCESS
SULPHUROUS
OF
I.
DISINFECTION.
MEMORANDUM on the Clayton Process of Sulphurous Disinfection, its Value and its Practical Application for the Destruction of Rats and other Verinin, for the Disinfection of Ships and Merchandise from Infected Ports, and for General Disinfection in the Case of Plague, Cholera, Typhoid Fever, Yellow Fever, and Malaria. By Professor W. J. SIMPSON, M.D., F.R.C.P.; in which is embodied a Report on certain experiments with the Disinfectant on the Bacillus of Plague, Cholera, and Typhoid Fever. By Professor R. Tanner HewletT, M.D., M.R.Č.P., D.P.H., and HOWARD S. WILLSON, B.A., M.B., D.P.H.
1. Object of this memorandum.-The object of this memorandum is to draw attention to the Clayton Process of sulphurous disinfection, also to a careful series of experiments undertaken to test its efficiency, and to its practical application for the destruction of rats and other vermin, for the disinfection of ships and merchandise from infected ports, and for general disinfection in the case of plague, cholera, typhoid fever, yellow fever, and malaria.
2. The need which exists of a practical method for the destruction of rats and vermin in order to prevent the extension of plague.—In my memorandum to the Colonial Office of February, 1900,* on the dissemination of plague by rats and possibly fleas, it was stated, that though there were numerous methods employed for the destruction of rats and insects, it was impossible to single out any one method which was satisfactory and efficient. For ships, among other methods, reference was made to the use of carbonic acid gas, and its generation and application were described. But practical experience shows its application to be limited, very expen- sive, and far from being effective; it has also, in some instances, proved to be dangerous.
It was, therefore, in connection with the prevention of the spread of plague by rats and other vermin, and more particularly the need of a practical method for their destruction that the experiments dealt with in this memorandum were undertaken. I had purposed, for some time, a series of experiments of this nature, having had brought to my notice the work which could be done by Clayton's Process of generating sulphurous gas. The experiments were more immediately undertaken because of a question asked me by Sir Wm. Hooper, K.C.S.I., President of the Medical
• Miscellaneous No. 127.
PUBLIC RECORD OFFICE
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