908 



SIR THOMAS R. FRASER ON THE 



same arrangement as in the arrows, but two or three of the darts have the 

 four pieces of palm leaf inserted equidistantly round the shaft instead of in two 

 opposite pairs. 



As the arrows in this collection are indistinguishable from all the other arrows 

 I have received from the Abor and Mishmi countries, their characters will be included 

 in the general description at p. 911. 



The poison removed from them, when finely powdered, is of a light brown 

 colour. With it experiments were made on rats and frogs, and they are summarised 

 in Table XL 



Table XI. — Poison of Mishmi Arrows in Surgeon-General Sloggett's Consignment. 

 Rats and Froys. — Subcutaneous injection. 



Date. 



Animal. 



Weiglit 



of 

 Animal. 



Dose 



per 



Kilo. 



Actual 

 Dose. 



Result. 



Notes. 



1914. 















Nov. 13 



Rat. 



180 



0-0175 



0-00315 



Recovery. 



Cardiorespiratory dislocation. 



„ 16 

 „ 17 





180 

 192 



0-025 

 05 



0-0045 

 001 



Recovery. 

 Recovery. 



Do. Respirations often abrupt. 



Do. do. Cardiac rate increased, fol- 

 lowed by some irregularity. Motor 

 weakness. 



Dec. 11 



" 



217 



0075 



0-017 



Death in more 

 than 3 and 

 less than 17 

 hours. 



Do. do. Early motor weakness. Pro- 

 fuse salivation. 



„ 11 



Frog. 



26-5 



qqt^ 



0002 



Recovery. 



Motor weakness. Considerable dia- 

 phoretic frothing. Cardiorespiratory 

 dislocation. 



Nov. 17 

 ,, 17 



») 



25 

 23 



0-2 

 0-3 



0005 

 0-0063 



Recovery. 

 Recovery. 



Do. do. 



Do. do. Respirations very irregular, 

 intermitting for considerable periods, 

 but cardiac contractions at same time 

 very little altered. General paresis 

 for two davs. 



Dec. 1 1 



)» 



22 



0-35 



0-0077 



Recovery. 



Do. do. Cardiac contractions lie 

 came more rapid and stronger than 

 before injection. Paresis for four 

 days. 



Do. do. Early, much motor weak- 



•2 



)) 



21 



04 



00084 



Death in from 













4 to 12 hours. 



ness and feebleness of cardiac con- 

 tractions. 



The, minimum lethal dose for rats is seen to be 0"075 grm. per kilo, and for frogs 

 0'4 grm. per kilo, again illustrating a much greater lethal power in the former than 

 in the latter animals. The poison of these arrows, however, is much weaker than 

 that <>f Colonel Bailey's arrows, being in both animals about ten times less lethal. 

 That this is probably due to deterioration resulting from exposure and age or from 

 a larger addition of inert substances, rather than because a different species of aconite 

 bad been used in its preparation, is suggested by the results of the examination of 



