- 
s) 
A. A. Hayes on the Color of the Water of Lake Leman. 187 
Many will remember the expression of Sir H. Davy, that 
“this color is doubtless due to so iodine,” 
“White waters,” when clear, always present this hue, 
and when turbid, a green hue, due to reflection from particles 
chemists, such as Will, Dafour, and Blanche, whose results only 
show the presence of more salts in number in the solid matter, 
hese analyses, I learned, were made in the usual way of 
“s water for the solid products, and driving off and 
collecti gases, a method which enables us to answer many 
questions, but does not permit the nicer determinations of or- 
% , if present, in a natural or an altered state. Anal- 
€ mnatter, is ignored ayy when we proceed in 
to determine the quantity and 
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