HYDROLOGY. 161 



greatei' elevation than that already attained, viz.: 253 feet above Lake 

 Michigan. By penetrating the Potsdam sandstone there is a reason- 

 able probability that a flow competent to rise to a higher elevation 

 could be obtained. 



The following is an analysis of the water of Mr. Buckhert's fountain, 



by Dr. L. Brandecke: 



Grains in 1 -gal. 



Bicarbonate of soda 1.898 



Bicarbonate of magnesia 5.818 



Bicarbonate of Hme 12.094 



Bicarbonate of iron 0.100 



Sulphate of potassa 0.054 



SiHca 0.305 



Organic matter 0.346 



Total 20.615 



While the above mentioned facts are still in mind, it will be con- 

 venient to speak of the Palmyra " oil well." A failure as a source of 

 oil, it yet has proved of some value in demonstrating the possibility of 

 Artesian wells in that and similar situations. The following is the rec- 

 ord kindly furnished me by Dr. Lapham: 



Palmyra Artesian Well (1865). Begun about 250 feet above Lake 

 Michigan (828 feet above the sea). 



