16 N. J. Mosquito Extermination Association 



were mosquitoes in the city. The whole problem came right straight 

 back to him again. He wanted their support and got it, but he had 

 to go out of town and approach them in a round-about way. 



There is a curious state of affairs down in Louisiana. One of 

 your biggest mosquito problems in this state and nearby states 

 along the seashore is sollicitans; and yet — and this is not origi- 

 nal with me at all-;— the observation I think originally was probably 

 made by Dr. H. R. Carter, who made other observations that every- 

 body knows of — in fact, was the source of the eradication of yellow 

 fever — but leaving that aside for a minute, I would just like to 

 make this statement : The sollicitans, which is so troublesome here, 

 stops malaria in Louisiana. It compels the people along the sea- 

 shore to screen and reduces the malaria by so doing. I won't say 

 stops it, but they would not screen except for sollicitans. I do' not 

 advocate having any sollicitans at all. We ought to get rid of both 

 sollicitans and anopheles. The sooner we get rid of them the better. 



President Engle: I am sure Mr. LePrince will be glad to 

 answer any questions that anybody will ask of him. 



Mr. Becker: I should like to ask Mr. LePrince a little more 

 particular details in regard to the sub-aqueous saw used and the 

 ditching plow. There are other features which are very interesting, 

 but those two would be particularly valuable to us. 



Mr. LePrince: I am very sorry, but I do not happen to have 

 pictures of those two instruments with me. 



Mr. Becker: Who makes them? 



Mr. LePrince : The ditching plow is made by the Martin Ditcher 

 Company, of Owensboro, Kentucky, and costs about $60, if I re- 

 member correctly. The Martin Ditcher makes a V ditch. It is 

 used quite commonly today in the rice fields for making the levees. 

 In any territory with not too much stone and small roots that plow 

 very rapidly pays for itself. I am not advertising the plow. I hap- 

 pened to see it first in an agricultural exhibit and tried the thing 

 out and we saved a lot of money down in Montgomery by its use. 

 In fact, we happen to be using eighteen of them at the present time. 



Regarding the sub-aqueous saw: this is a double-bladed saw, I 

 might call it a ribbon saw. Now if we took two of the quarter-inch 

 engineer's steel tapes and just cut them so as to make a saw on one 

 side and bound the two together, we would have a double-edged 

 saw, say about a half inch in width, or a steel ribbon saw; and 

 about every four feet along that saw we would put a weight. 



