58 TEANSACTIONS OF THE [dEC. 6, 



end of five days (120 hours). Tests at the end of ten days 

 (240 hours) showed two of the tubes delivering water free from 

 germs. At the end of fifteen days one was still perfect in its ac- 

 tion, and so continued for twenty days. The water which was 

 used in the trial was purposely fouled, containing about two 

 thousand germs per cubic centimetre. The results obtained, 

 then, with this material, are all that can be desired when cleaned 

 say once in five days, if used under the conditions of the experi- 

 ment. In the case of a substance like porous porcelain, it is a 

 very easy matter simply to take it from its sheath, brush it off, 

 and place it in boiling water for a couple of hours or, better 

 still, in a hot oven. The porcelain is then in its original condi- 

 tion, as far as regards efiiciency. 



December 6, 1886. 



KEGULAR BUSINESS MEETING. 



The President, Dr. J. S. Newberry, in the Chair. 

 Twenty-one persons present. 



The report of the Council was received and adopted, which 

 recommended the payment of certain bills and the election of 

 Albert A. Cart as Resident Member, and D. S. Kellicott, 

 of Buffalo, as Corresponding Member. 



The question of the adoption of the resolution offered by the 

 Secretary, October 4th, 1886, making certain changes and addi- 

 tions in the by-laws, was declared in order. The President 

 read from a copy of the printed resolution, which had been sent 

 to all the members. Items I., III., IV., and VI., as recorded in 

 the Transactions of October 4th, 1886, were unanimously 

 adopted. Item V. was unanimously adopted, with a change of 

 the word ** Proceedings " to ^'Practice." Item II., increasing 

 the amount of the fees and dues, was discussed and laid over 

 one month; and a Committee, consisting of the President, the 

 Secretary, and Messrs. Chittenden, Martin, and Trowbridge, 

 was appointed to prepare and send to all the members a state- 



