58 
BULLETIN 61, U. S. DEPARTMENT OF AGRICULTURE. 
Feet. 
Very tough brownish clay 746-759 
Rapid alternations of sand with brownish clay (small artesian flows in 
the sands) 759-771 
Hard brownish clay 771-785 
Quicksand (artesian water) 785-786 
Clay. 786-790 
Sand (small artesian flow) 790-791 
Brownish clay 791-798 
Rapid alternations of sand and clay 798-805 
Hard brown clay 805-816 
Quicksand and gravel (artesian water) [ 816-822 
Hard white clay _ ; 822-824 
Rapid alternations of brownish quicksands and clays. Some gravel 
f inch in diameter in the sands (very strong artesian flows in sands. 
Temperature of water, 22° C.) 824-846 
Brownish clay 846-850 
Sand and gravel 850-855 
Rapid alternations of sand and clay 855-858 
Very fine sand 858-862 
Rapid alternations of sand and brownish clay 862-865 
Gray clay 865-876 
Coarse gravel (artesian water) r 876-878 
Very fine sand 878-882 
Rapid alternations of clay and sand 882-886 
Gray clay 886-889 
Fine quicksand (artesian water) 889-892 
Rapid alternations of sand and brownish clay ; . 892-899 
Gray clay : 899-908 
Sand and coarse gravel (very strong artesian flows) 908-910 
Very fine sand 910-922 
Sand and coarse gravel (small artesian flow) 922-924 
Light-gray clay 924-934 
Fine sand 934-941 
Gray clay 941-945 
Sand 945-947 
Yellow clay 947-953 
Gray clay 953-967 
Sand and gravel (small artesian flow) 967-969 
Brown clay with occasional very thin streaks of sand 969-980 
Brown clay 980-1, 002 
Fine sand (dry) 1, 002-1, 003 
Hard brown clay 1, 003-1, 049 
Sand (dry) 1, 049-1, 050 
Brown clay 1, 050-1, 078 
Quicksand (probably dry) 1, 078-1, 079 
Brown clay with occasional very thin streaks of sand \1, 079-1, 085 
Tough brown clay 1, 085-1, 131 
Very thin sand streak (dry) 1, 131 
Brown clay 1, 131-1, 140 
Sand cemented by calcium carbonate, believed to be lake tufa 1, 140-1, 144 
Sticky gray clay 1, 144-1, 165 
Rapid alternations of clay and sand 1, 165-1, 175 
Lime-cemented sand. Probably lake tufa 1, 175-1, 190 
Reddish clay with occasional very thin sand streaks (dry) 1, 190-1, 204 
Fine sand, probably quick 1, 204 
The casing having stuck hopelessly in the cemented sand between 1,175 and 1,190, 
it was impossible to carry the hole deeper. 
The bore does not show either beds of salines or brines. The material obtained 
consists of muds, silts, clays, and quicksands. Artesian water was encountered at 
many points. The nonpenetration of saline beds by a single bore hole is not surprising 
when one considers the area of the central depression. The fact that artesian flows 
were encountered would argue that the bore was considerably without the central 
mud area, or the area of lowest depression. The former lake in evaporating may have 
separated into several parts, and thus we might have several saline beds of moderate 
thickness in the central area. The general silting of the whole area would render it 
