222 MALAY POISONS AND CHARM CUBES 



coloration, fading to chocolate and yellow. Caustic 

 potash after nitric acid gives a similar reaction, less 

 lasting, passing to purple then yellow." This is a 

 distinctive reaction which might prove useful in 

 criminal cases, as it is very sensitive (Ref . 7) . According 

 to Campbell, it should be easy enough to detect the 

 presence of ttiha poison in the stomach contents by 

 simply testing the effects, after boiling and filtering, of 

 some of the fluid upon small fish, seeing that they are 

 killed by very weak solutions of the poison (Eef. 3). 



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(1) Brooke, G. E, (1920.) Medico- Tropical Practice." London, 



(2) Bbown-Bueton, X. E, (1888.) Punjab Poisons," p. 128. 



Calcutta- 



(3) Campbell, J. A. (1916.) " An Experimental Investigation 



Concerning the Effecta of ' Tuba ' (Derris EUiptica) Fish- 

 Poison.'* Journal Straits Branch Royal Asiatic Society, 

 No. 73, p. 129. Singapore. 



(4) Chevers, N. (1870.) " Medical Jnriaprudence for India." 



Calcutta. 



(5) Clifford, H. (1898.) " Studies in Brown Humanity," p. 233. 



London. 



(6) Dymock, W. (1885.) The Vegetable Materia Medica of 



Western India," p. 627, Bombay. 



(7) Durham, H. E. Private communication. 



(8) GiMLETTE, J. D. (1903.) *' Datura Poisoning in the Federated 



Malay States," British Medical Journal^ Vol. I., p. 1137. 

 London. 



(9) Greshoff, M, (1893.) " Mededeeling uit s'Lands Planten- 



tuin," Vo^. X. and XXV. Batavia. 



(10) Henry, T. A. (1913.) " The Plant Alkaloids." London. 



(11) Holmes, E. M. (1874.) " Vegetable Poisons and their 



Antidotes." Hie Fkarnvaccuiical Journal and Tramaclio7is^ 

 June 2ath, p. 1014. London. 



(12) Hose & McDougall. (1912,) " The Pagan Tribes of Borneo." 



London. 



(13) KiRTiKAR & Basu, (1918,) Indian Medicinal Plants," 



Allahabad. 



(14) Marsden, W. (1811.) " The History of Sumatra." London. 



(15) Maxwell, G. (1911.) In Malay Forests/' p. 246. London. 



