SOIL. 99 
The nature of the mixture in the soil constituting white alkali is 
illustrated by the following analysis: 
Surjace Crust of Soil from Kern Island, Bakersfield, California.* 
eoceur: Pe Ch 
Posesstimi sulphate.:.5......... O62 Caleitnt phospnaer,.. 2.2 Fe ).e 0.20 
PPIPPIIBONALC. (oc 6 se es oie os 82.96 Calcium: carbonates wae. .20s6e <6 Bp te. 
a gts ra .48 Ferric and aluminum oxides..... <30 
Bommarcarbonate.............. .40 LIGA gta olece tects pean wl aia ats 1.34 
Magnesium sulphate........... .50 Organic matter and water of 
Magnesium carbonate........... as 3 CTY StaliZalion... cme wes 5 5 4.07 

Alkali from the Valley of the Rio Grande in New Mexico.t 



| 
No. 1 No. 2 No. 3 
ibs ace fone. Het: 
MeL S ECT fo Loic e's a aA ic- hy aju a vie @ o,0ls Ss wie ens 75.59 74.24 34.40 
Pere tO UIC. 12 WALET. . 15. oases ee he rn eee 24.41 25.76 65.60 
Composition of soluble portion: 
PRE EOS WIC secre oc gig ee o6 wi aial'a dine ose o's 4.71 ey, sat 
EERE pt ee Se ae thd os eels de ase 37.72 28.97 38,25 
PMEREESYSCCURANSO rent. gaa). aerate ial. 8 d's) eseeha leas 5.57 6.60 7.92 
OES hits 0. @ Ud (One Oe on er | sOSu-de pass B05 
NR AEE rea ge acciainie a» 206 Fox 4 a)< Os 3.24 0.00 0.00 
RPE ae 9 Pace 58 SL: saite 8 GIN de gid ke ss Ww Y.t0.16 47:92 san07 
REC cere wait) «tase gine e/a Sun's vee, 47.96 4.58 I.20 
MER Ce ei ac Pdr aire hike a5 ba Wve! d 8 age trace trace trace 
Water of crystallization and organic matter... -44 8.04 5.84 



The composition of the impregnating salts producing the black alkali 
‘$s shown by the following analysis of alkali salts from soil near Fresno, 
California.{ 
Be ct. P. ct. 
Boracsium chioridée............-. 1.30 PCIE GAPOOMATC sacar ola ass te 2,5 1o.72 
POUT BUIDII ALE 6s nite os ons ee ss 18.23 DOUIUt ICaT DON aLe sty, cs.s + og ai 2572 
SPIO ICG. vo, cp eos & she a 25°93 POOL OCI ee ee + xiao oe 6 2 710 
*Analysis by E. W. Hilgard: Report of Work of the Agricultural Experiment 
Stations for the year Igoo, p. 97. 
t Analysis by Goss and Griffin made from three samples from different local- 
ities. Bulletin No. 22, New Mexico Agricultural Experiment Station, p. 26, 
March, 1897. 
{Means, T. H., and Holmes, J. G.: Soil survey around Fresno, California. 
Field Operations of the Division of Soils, U.S. Department of Agriculture. Second 
Report, p. 373, 1900. 
