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[[left margin encircled]] 11 [[/left margin encircled]]

as crackout material. Saw none silicified. Silicifination not common in bioherms at west end of Chinati hill.

Biolerms overlie cgl. and also at 50 - 100' of shale and thin-bedded limestone in the area from 728 - Z and west.

March 22.

The loose specimens collected in Chinatis (728j?) are rather from the Alta fm. than from the Cibolo. Our collection this year is M2267
[[margin blue]] 738h [[/margin blue]]

[[margin blue]] 738i [[/margin blue]]
Sponge is M22671 - float on slope under largest bioherm, first one west of volcanic plug.

[[margin blue]] 738j [[/ margin blue]]
M22672 - Breccia zone on slope just west of large bioherm of M22
Slopes between 728 - Z & M22 thick bio.

[[margin blue]] 738k [[/margin blue]]
M22673 - About 25' below the Liosotella bed.

[[margin blue]] 738-Z [[/margin blue]]
M22674 - Beds with Liosotella about 125 above the uppermost bioherm.

[[margin blue]] 738m [[/margin blue]]
M22675 - About middle of thin-bedded member of Cibolo in a