Medicine - Institutions > Army health reports and medical documents > Scientific memoirs by officers of the Medical and Sanitary Departments of the Government of India > Number 38 - Preliminary report on the killing of rats and rat fleas by hydrocyanic acid gas > Preliminary report on the killing of rats and rat fleas by hydrocyanic acid gas
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17
Experiment II.
A small room was used—of 830 cubic feet capacity. The same amount of
hydrocyanic acid gas as in Experiment I was introduced without the use of
a fan. The exposure to the gas was for half-an-hour only.
| POSITION. | RATS. | FLEAS. | REMARKS. | |||||
| Dead. | Sick. | Alive. | Dead. | Alive. | ||||
| On the floor | 1 | ... | 1 | ... | ... | |||
| 4 feet from floor | 1 | ... | 2 | All | ... | |||
| 6 do. | ... | 2 | ... | ... | ... | |||
| 10 do. | ... | 2 | ... | All | ... | |||
| 12 do. | ... | 1 | ... | All | ... | |||
Experiment with Fleas.
| Details of covering, etc., enclosing the fleas. | Results after 30 minutes' exposure to the gas. |
REMARKS. | |
| (a) 11 fleas were put in a white cotton bag and that again enclosed in one bag of coarse red blanket. |
(a) 9 alive; 2 dead. | Another cotton bag containing 11 fleas was put between two layers of blan- ket and two of cre- tonne—all dead. In this case a pipe dis- charged the gas on the top of the blanket. |
|
| (b) 12 fleas in a white cotton bag were enclosed in two layers of coarse red blanket. |
(b) 7 alive; 5 dead. | ||
| (c) 12 fleas in a white cotton bag were enclosed in three layers of coarse red blanket. |
(c) 10 alive; 2 dead. | ||
| (d) 17 fleas were put in a fine flannel bag. |
(d) All dead. | ||
| (e) 14 fleas were put in a chintz bag | (e) All dead. | ||
| (f) 15 fleas were put in a cashmere bag | (f) All dead. | ||
| (g) 10 fleas were put in a single cotton bag and that rolled in a durree, blanket, coat, and trousers. |
(g) All alive. | ||
D
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| Permanent URL | https://digital.nls.uk/75033622 |
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| Shelfmark | IP/QB.10 |
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| Description | 61 volume new series covers bacteriological research work from 1902-1913 by Indian Medical Service staff. Laboratory experiments are recorded in detail. Many are accompanied by illustrations showing microscopic views and features of plant and animal matter. (Calcutta : Supt. of Govt. Print., India, 1885-1901.) |
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| Shelfmark | IP/QB.10 |
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| Description | 12 titles describe the health and sanitary conditions of the army in India. Lists British, European and Indian troops plus families of military personnel. 3 volumes of army regulations included. 73 volumes make up the Scientific Memoirs series, a journal by Indian Medical Service staff. |
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| Description | The Institutions collection consists of 106 volumes from British India, dating from the 1860's to the 1940's. Divided into reports on medical institutions, army health, and lock hospitals. Education of indigenous medical students and maintenance of troop health shown in annual reports and statistical tables. |
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| Description | The India Papers collection contains publications of the central (Imperial) Government and many Indian states. Most states came under British rule. Much of the collection dates from between the post-Mutiny re-organisation of the Indian Government and Indian Independence in 1947. Some items published in London by John Murray. |
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