ENPages
p.10
The same rock is found in the bed of the Milwaukee river, near the middle section of 18. T.8R.22 - elevation above the lake 50 ft - or about 3 fet per mile from the locality on the Lake Shore. The color, fracture, texture &c of this rock, as well as many of the petrificatons are the same as that of the water limestone at Louisville Ky; and its geological portions is the same, being next above the ("cliff") geodiferous limestone. The rock is regularly stratified but is easily broken into fragments and has occasionally a layer of soft shaly matter interposed, which readily falls to pieces when exposed to the weather. Small geodes lined with crystals o calcareous spar are common; also iron pirites, which sometimes lines cavities and has a beautiful green color with amythistine reflections. Also of bright bronze yellow crystals. Sometimes the pyrites is found in very delicate threads running across the cavities, - needles in bundles, radiating &c.
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p.11
[list of stones]
At the lake shore this rock is quite bituminous - the bitumen mostly in a fluid state resembling mineral tar felling small cavities in the rock. At the river it is probabl that from the long exposure of the rock to the air and water this bitument has been destroyed. On the Lake shore the rock is exposed to the weather only a short...
p.12
...time after the clay above is removed before it is broken up and covered by water. The clay bank above the rock is so steep that the fishermen stationed here are obliged to use a ladder for a part of the ascent. The lake is graduall undermining it - hence its steepness.
[list of stones]
p.13
B. Kilbourns quarry on Milwaukee river west part of NE 1/4 of sec 5 Town 7 Range 22
This quarry was opened in Dec 1843 at the surface of the water not yet sufficiently worked to develope its character. There appears to be two layers - the lower exhibiting wavey lines and contains considerable iron pyrites - The other somewhat similar to that found on the Lake shore and in the river half a mile below. But few fossils have yet been found. No 26 strophomeres? is found here, & others common to both localities may be found.
[list of stones]
