112 



INDIAN SNAKE POISONS, 



five cases, is 15' 17 hours ; but the average is raised by 

 the exceptionally long duration of a few cases of viperine 

 poisoning, so that a better estimate of the probable 

 duration of time will be obtained by dividing the period 

 after the bite into spaces of one hour each, and deter- 

 mining what percentage of deaths occurs in each : — 



One hour and under 

 Between one and two hours 

 Between two and three hours 

 Between three and four hours 

 Between four and five hours 

 Between five and six hours ... 

 Between six and seven hours 

 Between seven and eight hours 

 Between eight and nine hours 

 Between nine and ten hours 

 Between ten and twelve hours 

 Between twelve and twenty-four hours 

 Over twenty-four hours 



Percentage of 

 Deaths. 



10-76 



12-3 



13-84 

 7-61 

 1-54 

 1-54 

 3-07 

 4-61 

 3-07 

 7-69 

 4-61 

 9-36 



2000 



From this table it will be seen that the most fatal 

 period is between two and three hours, and that more 

 than twenty-five per cent, of the total deaths take place 

 between one and three hours after the infliction of the 

 bite. But, if those who die after twenty-four hours be 

 eliminated as having occurred, as is probable, from 

 viper-poisoning, it would raise the average of those who 



