NATURAL REMEDIES. 121 



the early stages of the mosquito. The use of poisons or 

 uncongenial admixtures in the breeding grounds of the. 

 mosquito is to be avoided. 



The use of lanterns so arranged as to attract and de- 

 stroy the mosquitoes. The lamps I recommend are illus- 

 trated on Plates VIII. and IX. Their action is simple 

 and adequate. The mosquitoes are attracted to them, and 

 are destroyed in the pans of coal oil or kerosene, or 

 other strong mixtures which may be used. They should 

 be placed around houses, hotels, and in marshes. The 

 expense and trouble with their management is inconsid- 

 erable, as their use is discontinued, of course, during a 

 large part of the year. 



General and scientific drainage of swamps is a very 

 radical and intelligent course of operation. It goes even 

 further back than the larval stage, for it precludes the in- 

 cipient acts of the mosquito at propagation. It robs her 

 of the congenial nidus for the development of her eggs. 



Finally, I beg to emphasize the extreme aid which vil- 

 lage authorities misrht render in this matter. A small 

 general fund appropriated to experiments would be of 

 great assistance in helping to solve the problem. At the 

 same time no isolated and forlorn unsupported attempts 

 on the part of a few localities will be of any use. Coop- 

 eration, combination, unanimity, and persistence are the 

 needed factors, and only in such consolidated efforts can 

 we look for any encouragement in freeing ourselves from 

 this formidable pest. 



Medicines. 



I append a list of more or less helpful medicines or de- 

 terrents for individual protection : lemon juice, vinegar, 



