58 Proceedings of tJie First Convention 



Question : May I ask whether in that case at Virginia 

 Beach, there was free access of the tide? 



Dr. J. : The engineer who built it used a very ingenious 

 plan. He built a canal, boarding it at the bottom, and at the 

 sea outlet he had an inclined plane and then a sharp turnout, 

 and when the sea came in it threw enough water over that in- 

 clined plane which could not get back to the ocean, but ran 

 down into the lake, and then the outlet being made for the fresh 

 water, the salt water completely annihilated the fresh water. 

 That is a very important question to Brooklyn, and I would 

 like to have it settled ; many people are moving away from that 

 section on account of the malaria. 



Question : Are there not fish in the Prospect Park Lake ? 



Dr. J. : Only a few. The edges permit of mosquitoes. 



Dr. Felt: May I have just one word? I think if you could 

 keep those lakes in the Park normally salt, at the same degree 

 as the sea, you would have very little difficulty, but I imagine 

 if you don't provide for a constant change you would soon have 

 brackish conditions. 



Dr. J. : In connection with that, I have experimented with 

 the mosquitoes and find that they will not live in the sea water. 

 Necessarily, in the introduction of sea water into the Park the 

 margins would have to be obliterated and either asphalted or 

 stone put there. Everything would be done in order to keep 

 fresh water from percolating into the lake and making it 

 brackish. 



Dr. Felt : How would you cut it off from overhead ? 



Dr. J. : That would amount to nothing. I don't believe that 

 would be any injury whatever. 



Mr. Weeks : I have some resolutions of thanks that I would 

 like to offer. I will also say in regard to my own paper that 

 I will not take the time of those present to listen to it, but I 

 will have it incorporated at the end of these proceedings, and 

 then if they are printed it will appear with the others. I 

 also want to say, before Dr. Junor leaves, that the Doctor has 

 been in service in China, in adjoining hospitals, with Dr. Man- 

 son, of whom we all know, in connection with mosquito in- 

 vestigations, which connection accounts for Dr. Junor's first in- 

 terest in the subject. Now I would like to offer the following: 



