T. M. Chatard — Analyses of Alkali Lake Waters. 149 



son would, under any circumstances, render the success of any 

 industry established there very doubtful. 



The sample analyzed was collected by Mr. Russell in 1882 

 and was taken at the depth of one foot, on east side of lake. 



Specific gravity, 1*045 at 15'5°. 



In 1 Liter. 



Per cent. 



Hypothet. 



Composition. 



Per cen 



Si0 2 '0700 



•12 



Si0 2 



•0700 



•13 



K -9614 



1-79 



(Al 2 Fe 2 )0 3 -0030 



•005 



Na 19-6853 



36-81 



CaC0 3 



•0500 



•09 



Ca -0200 



•037 



MgC0 3 



•1928 



•36 



Mg -0551 



.10 



Na 4 B 4 7 



•2071 



•39 



(Al 2 Fe 2 )0 3 -0030 



•005 



KC1 



1-8365 



3-44 



S0 4 6-6720 



12-480 



NaCl 



18-5033 



34-60 



C0 3 13-6903 



25-61 



Na 2 S0 4 



9-8690 



18-45 



B4O7 '1600 



•30 



Na 2 C0 3 



18-3556 



34-33 



CI 12-1036 



22-64 



NaH0O 3 



4-3856 



8-20 



H -0522 



•10 











53-4729 



100-00 



53-4729 



100-00 





Finally, at the southern end of the series, we have Owen's 

 Lake, Inyo Co., California. This lake has been described by 

 Oscar Loew in Wheeler's Report for 18T6, pages 189-194, and 

 upon it most of my field work for 1886 and 1887 has been done. 

 Its greatest dimensions, as given by Loew, are seventeen miles 

 long by nine miles wide, its greatest depth fifty-one feet, and 

 it contains, according to his calculation, 22,000,000 tons of 

 carbonate of soda. The Inyo Development Co. has begun the 

 manufacture of soda at this point and to it I am indebted for 

 every needed facility for making observations on the evapora- 

 tion of the water and on the various salts obtained by its frac- 

 tional crystallization. These products, together with others 

 since obtained, are under examination and the results will be 

 published later. 



The sample analyzed was taken by myself, Sept. 17, 1886. 

 Portions of 100 c.c. were taken for each determination, the 

 duplicates agreeing very closely. 



Specific gravity, 1-062 at 25°. 





In 1 Liter. 



Per cent. 



Hypothet. Composition. 



Per cent 



SiO a 



•220 



•28 



Si0 2 



•220 



•28 



K 



1-644 " 



2-13 



(Al 2 Fe 2 )0 3 



•038 ) 

 •055 j 



•13 



Na 



28-500 



36-96 



(CaMg)C0 3 



Ca 



•014 



•02 



Na 4 B 4 7 



•475 



•63 



Mg 



•005 







KOI 



3-137 



4-07 



Fe 2 : 



•014 



•02 



NaCl 



29-415 



38-16 



Al-A 



•024 



•03 



Na 2 S0 4 



11-080 



14-38 



S0 4 



7-505 



9-73 



Na 2 CO s 



26-963 



3495 



B 4 7 



•367 



•49 



NaHC0 3 



5-715 



7-40 



C0 3 



CI 



19-398 

 19344 



25-16 

 25-09 











77-098 



100-00 



H 



•063 



•10 











77-098 



100-00 





