262 
IOWA ACADEMY OF SCIENCES. 
NOTES ON THE BACTERIOLOGICAL ANALYSIS OF 
WATER. 
BY L. H. PAMMEL. 
The recent epidemic of typhoid fever at the college is of 
interest to us and especially the methods now in vogue 
with reference to the examination of water for various 
organisms. During the recent epidemic and previously the 
well waters in the vicinity of Ames as well as the 
college water supply were examined at various times. An 
examination has also been made of water coming from 
wells of the parties who have furnished milk to the college. 
It should be stated here that this report is not completed 
owing to the fact that some of the species have not been 
sufficiently determined. From the nature of the case it 
requires a great deal of patient and careful work to run 
out the different species, so that the biological examination 
was not completed. Thanks are due to Mr. F. W. Faurot, Mr. 
A. D. McKinley, Mr. H. H. Thomas, Miss Nellie Nicholas, 
Miss Estella Paddock, and Mr. L. R. Walker for assistance 
in carrying out this work. 
In the paper on the Iowa State College Sewage Disposal 
Plant will be found a brief note on the water of the deep 
well previous to this spring. Examinations have been 
made from time to time, and as a result of our work, we 
found that the water during the winter months varied from 
no bacteria to 50 per cubic centimeter, thus showing an 
unusually good supply of water. 
A Marston, J. B. Weems and L. H. Pammel. The Iowa State College 
Sewage Disposal Plant and Investigations. Proc. la. 
Engineering Soc. 1900 . Contr. Ia. State Coll. Argrl. & 
Mech. Arts. 1:19. 
