I02 ENTOMOLOGICAL NEWS. [Apr., '19 



solution of morphia at night to induce sleep, and was freely bitten. 

 The first and third recovered. The second still had ague. Here in 

 the first case quinine cured as was expected. Of the other two, who 

 took only morphine, he alone was cured who was freely inoculated 

 with the virus of the mosquito. 



3. With much care, sufficient of the chrystals of quinidia were ob- 

 tained to make a saturated solution for experiment. And among the 

 many ague patients of the hospital, twelve were chosen as near alike as 

 possible in age, constitution and violence of disease. Six were treated 

 with hypodermic injections of the solution of the virus' and six with 

 similar ones of solution of quinine. All twelve recovered. But those 

 injected with the virus of the mosquito got well in one-third less time 

 than the remaining six. 



In *'The Mosquitos of North and Central America and the 

 West Indies" by Howard, Dyar and Knab, Vol. I, p. i88, under 

 "Early Ideas," appears a statement, by Dr. Samuel W. Francis 

 from his paper entitled "Curious Facts Concerning Man and 

 Nature with a Few Practical Suggestions on Other Subjects," 

 1874, to the effect that in a previous work of his entitled "Life 

 and Death," p. 210, Mar., 1871, mention is made that 



"The time will come when it will be publicly acknowledged that the 

 little fluid they (the mosquitos) inject into your blood contains certain 

 specific properties for different diseases. To prove that I am right, 

 let any skillful chemist test the powerful drop contained in a mosquito's 

 sack and he will find many of the properties of Quinine." 



The statements of both Knox and Francis are curious in- 

 stances of a conclusion diametrically opposed to the right one 

 having been drawn from practically the same premises. 



In the "History of Hunterdon and Somerset Counties, N. J.," 

 compiled by J. P. Snell, 1881, the following brief biographical 

 account of J. Suydam Knox is given : 



Born July 26, 1840, graduate of College of New Jersey, i860; of 

 Physicians and Surgeons, N. Y. City, 1866; City Hospital, Brooklyn, 

 1868; practiced in Somerville, N. J., from 1866 to 1873 when he re- 

 moved to Chicago, and became lecturer and clinical professor in Rush 



Medical College. 



1 ^ . 



Change of Address. 



I am giving up my position as Curator of the Barnes Collection 

 to accept a post in the Entomological Branch of the Department of 

 Agriculture at Ottawa, Ontario. I expect to commence my new duties 

 April Tst. — J. McDuNNOUGH. 



