39 



The President — This paper of Mr. Gies is open for dis- 

 cussion. 



Mr. LEE — I would like to ask the gentleman if he found, 

 in going through his various sources of information, any reports 

 or statements which would indicate the percentage of value 

 derived from the places where two dollars per capita was spent, 

 as compared with the places where ten cents was spent. In other 

 words, did they get that much more immunity from mosquito 

 nuisance ? 



. The President — Any further discussion, or any further 

 questions? If not, I will ask Mr. Giles to close the discussion. 



Mr. LEE — He also made the statement, I think, that he could 

 secure laborers for $1.73 per day. In Essex County we were 

 not able to secure laborers for less than $2.00 per day, and I 

 agree with him, that we will have to pay more later on. 



The President — Mr. Gies, will you respond to Mr. Lee? 



Mr. Gies — Mr. Chairman, I am unable to give actual sta- 

 tistics as to the efficiency of the work as far as actually reducing 

 the number of mosquitoes in those places where, for instance, 

 five cents per capita has been spent in a county, or fifteen cents 

 has been spent per capita, or, as in the tropics, two dollars per 

 capita. This could only be determined by a series of night col- 

 lections in each place to find out the prevalence of mosquitoes on 

 the wing for purposes of comparison with the number in other 

 areas. No such night collections have been made «in the tropics 

 as far as I know. I know this, however, that in the counties 

 where work has been carried on, I should say a reduction of 

 eighty-five to ninety per cent, of the mosquitoes from the number 

 we had five or ten years ago has been possible, and has been the 

 usual thing in most summers. But as to the comparative effi- 

 ciency of the results that have been obtained in these counties and 

 in the tropics, I could not say. I think, however, the estimate I 

 have given, fifteen cents per capita per annum, is a fair average 

 of the cost of carrying on the work in this State. 



Dr. Howard — In the tropics where the work has been de- 



