DISCUSSION. 349 



downstairs in the exhibit. Mosquitoes have habits as distinct as domestic 

 and wild animals, such as the dog, the cat, the lion, the bear; and the 

 only way intelligently to combat them is by first, obtaining an intimate 

 knowledge of their habits. 



Doctor Oastellani. — Malaria prophylaxis based on mosquito destruc- 

 tion is of the greatest importance, and I am very much in favor of it, 

 but at the same time we should not forget how useful quinine prohylaxis 

 also is. I would call attention to the splendid work of Professor Celli 

 in Italy. He has succeeded in having passed through both houses of 

 Parliament laws by which quinine is manufactured by the State and 

 supplied gratis to the poor people in the .malarial districts of Italy. 

 These legislative measures have been taken up by Greece and Eoumania 

 and the results have been most satisfactory. 



DISCUSSION ON THE PAPER "INCIDENCE AND COMPLICA- 

 TION OF MALARIA IN THE PHILIPPINE ISLANDS," 

 BY DOCTOR BOWMAN. 



Doctor Castellani. — Doctor Bowman's paper has been very interesting 

 to me. In Ceylon I have come across many cases of sequelas and 

 complications of malaria, and I agree with Doctor Bowman that a 

 neuritis, sometimes a polyneuritis, ma}' be of malarial origin. 



I have not had much experience in regard to the treatment of malaria 

 with atoxyl. I treated three cases with it, but the results were far from 

 being encouraging. I gave about one-half gram ever}' two days. In 

 one case I had to discontinue the treatment because the patient developed 

 symptoms of arsenical poisoning. As regards arsenophenylglycin, I 

 have not had any experience, but this drug has been shown by Doctor 

 Bowman to have no effect in malaria and may produce symptoms of 

 arsenical poisoning. 



Eeferring to the treatment of filariasis, I have made some experiments 

 with atoxyl and other drugs and in my experience all of them are 

 useless. How.ever, it has seemed to me that in some cases of chyluria 

 there is a slight benefit from the administration of methylene blue. 



DISCUSSION ON THE PAPER "NOTES ON CONTAOIOUS 

 OPHTHALMIA," BY DOCTOR BROOKE. 



Doctor Chamberlain. — I am much interested in the subject of Koch- 

 \Yeeks conjunctivitis because the Army Board for the Study of Tropical 

 Diseases, of which 1 am a member, has been investigating for two 

 months an extensive epidemic of conjunctivitis among Filipinos on 

 Carabao and Corregidor Islands at the entrance to Manila Bay. There 



