408 - Screntific Intelligence. 
saline matters are derived, and may so far favor the washing out 
of the salts during the rainy season, that the latter will thereafter 
fail to reach the surface so as to accumulate to an injurious extent 
with reasonable tillage.” In his illustrations of the subject anal- 
yses are given of the waters of Kern and Tulare lakes, and of 
some rivers of California. In that of Kern Lake, March, 1880, the 
total residue obtained was 211°50 grains per gallon (about 26 times 
more than in an average river water), which consisted of Carb. soda 
64°37, common salt, glauber salt, ete. 115-41, carb. Ca, Mg and 
silica 9°29, vegetable matter 22°43. The water from the middle 
of Tulare Lake, at surface, afforded 81°95 for the total residue, 
consisting of Carb. soda 35°30, common salt, glauber salt, ete. 
35°96, carb. Ca and Mg, and silica 5°37, vegetable matter 5°32. 
Water of the Cafion of Kern River afforded 9°49 of total _resi- 
due; but the proportion between the sodium carbonate and the 
other salts is almost exactly that in the water of Tulare Lake, or 
1 to 22; so thatyif 22 gallons were boiled down to 1, the water 
would have the same alkali in quantity and quality as that of the 
lake; and if further reduced to 34 pints, it would have about the 
composition of that of Kern Lake. Professor Hilgard remarks 
as follows respecting the use of the Kern River waters in. irriga- 
tion: 
7. Biennial Report of the State Geologist of the State of Col- 
. 8vo. Den- 
