E. W. Hilgard—Silt analysis of Soils and Clays. 3338 
8°5 ' 
XXIII. Sea = 1°732 =nat. tang. 60=ang. at H’.-. ang. at Z= 
30°=latitude. 
XXIV. 177°52 : 1:: 226°4:1°275; nat. tang. 51° 55’. 185°08: 
205 :: 205: 227°1; diff. °7. 
XXV. 185°03: 205::1:1°1078; nat. tang. 47° 55’; diff. 5’. 
Art. XXXVI—On the Silt Analysis of Soils and Clays; by 
Kue. W. Hitearp, State Geologist of Mississippi. 
[Continued from page 296.] 
the filter 
Property possesses highly important bearings, both on the agri- 
cultural and ceramic qualities of clays, I propose to investigate 
"'more minutely hereafter. 
