Chapter XXI: Section III: A little farther up the river than the preceding

85 Pipe-clay on a level with the water 1 foot
86 Lignite 1
90 Potter's clay 14 feet
87 Pipe-clay 1 foot
89 Lignite 1
91 Potter's clay 10 feet
Lignite 1 foot
Sandstone 8 feet
Lignite 2-1/2
Potter's clay 10
94 Friable sandstone and clay 20
Sandstone a little more durable 12
Sloping Summit 40
---------
121-1/2

The pipe-clay, when taken newly from the bed, is soft and plastic, has little grittiness, and when chewed for a little time, a somewhat unctuous but not unpleasant taste. When dried in the air it acquires the hardness of chalk, adheres to the tongue, and has the appearance of the whiter kinds of English pipe-clay, but is more meagre.