The Montgomery advertiser., 1901-06-30
MOSQUITOES LURED
 TO DEATH BY MUSIC
interesting Account of Some Unique ExperlmcntS1 With the Germ-Bearing StS-DiScOVerieS
 Made by MI. A. d'P. Weaver.

sary for flying, and by so doing to cause the insect to be precipitated from the air?
 The psychicai theory asks that we grant as a postulate a higher organiza- tion of the insect than we have been led to believe 1t possesses. This theory seeks to explain the effect by saying that the phenomena is produced through the auditory process of the mosquito. and thence to the brain and there produces an inhibition--through the nerve centers-of the muscles eTra- ployed in flying.
 "A gentleman of this city. whoss quick perception and mentality pecuIi- arly fits him to grasp the relations of cause and effect. has just suggested tc me that the note given off by the move ment of the mosquitoes wings probably plays a part equal in importance to that of the sounding body in producing the effects noted.
 If we admit this, which is analo- gous to and an elaboration of the phy~ sicaI hypothesis mentioned above, our reasoning will be about as foilows.l Interference of sound is produced he tween the set of sound-waves given of by the siren and the set emanating from the wings of the insect. It Is one of the well-known facts in physics that the phases of two sets of sound-waves produced simultaneously, can be so ad- jusl> as to produce silence, and sli- ence in the case of the mosquito means that its wings are in a state of rest. Interference of sound has to do with phase or pitch and can be induced in- dependently of volume or quality Therefore the siren may break the cor- tinulty of the movement of the wings nH ha tra onk rok f.e forth It's own set of waves. because of the greater volume of sound emitted by the latter as compared with that given off by the motion of the mos Quito's wings.
 This theory. however. failed to ex- plain why the mosquitoes are attracted toward the sounding body and why they do not fall where they happen to be at the moment the note is produced.
 That none of these theories accounts for all the observed facts, I am well aware. but these hypotheses will have to stand until one more competent than myself shall furnish more likely theory. and one more in harmony with all the observed facts.
 Thinking 1t not probable that the ef- fects ascribedr here could noe have eaA caped the not1nA of other experimentefs I made a search through my own and other scientific libraries. but could not find a reference to any such expert ments. and was. therefore, led to be- lieve that had furnished, if nothsnK elses a small cnntribntion to the life history Of the mosquito. whose import ance as g disease-bearer is rapidly growing, as 1t evidenced by the ytgor4 ous war of extermination being wMged against it throughout the infected dis- tricts.
 Press of other business caused me to drop these experiments which seemed SO promising, and the matter was not again taken up until February last. when had the hon0z 60 transmit t0 the Secretary of Agriculture at Wash Ington an exhaustive and technical acc count of these experiments, in order that the matter might be referred t0 the Entomologist of that department for his information and remarks thera- on.
 "In reply to this communication I have been advised by Entomol0gist Howard of that department that. so far as he knows. my observations are novel. and that he will take the first opportunity to cause my experiments to be repeated on a large scale this summer.
 q am not of the opinion that my ob- SSA eAo ASlG HCb AOAbA WAAA ASDAAt Tn a more effectual method of exterml- hating the mosquito than the old plan which has for it's basis the use of kero- Sene. especially where large areas are involved: yet every contribution to the fife history of the enemy with which we have to deal Is that much added to ] our knowledge as to how we shall best rid ourselves of the pest.
 "I agree with the distinguished Dr. sternberg that when we shall have eli minated the mosquito. we will have gone long way toward preventing the of yellow fever. and some other diseases in tropical and semi ropical districts.
 'In our own country. it is the South hat Is most concerned in the preven- ion of yellow Iever and malaria .hese do not thrive in the North. And while 1t is true that Science is not pounded by sections. yet we cannot shut our eyes to the fact that the inter- ssts of any community is best conserv- d by those having most at stake there n.
 This being true. why Is it that the medical practitioner. the bacteriolo- gists. the biologists and scientists of he South do not. either as individuals 'r collectively, attack the problem of he prevention of these diseases pecul- ar to our climate? Let these be taken ID systematically and with a vigor hat will compel nature to give up her secrets for the benefit of mankind.
 That the South possesses men we'll qualified by their scientific training to solve these problems there can be no 1oubt; while on the other hand. that they are standing stlli and waiting for others to act. there is still less doubt.
 ''The South must work out it's own salvation in this matter. as 1t has done In matters commercial and economic. That the South will do so. I do not al- low myself to doubt.
 "The man or men who shall find for yellow fever and ma laria will be entitled to and will receive great honor indeed. and will take rank at once with such men as Pasteur and Koch"
 Electric Boats.