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Clark, August 22, 1804

22nd of August Wendesday 1804 Set out early wind from the South. G Shannon joined the Boat last night. Course this morning is S 47° W. 11/4 on the S. point West 11/4 me. to the Commencement of a Bluff on the L. S. the High land near the river for Some distance below. This Bluff contain Pyrites alum, Copperass & a Kind Markesites also a clear Soft Substance which will mold and become pliant like wax) Capt lewis was near being Poisened by the Smell in pounding this Substance I belv to be arsenic or Cabalt. I observe great Quantity of Cops. ans and almin pure & Straters of white & brown earth of 6 Inch thick. a Creek Corns in above the Bluffs on which there is great quantities of those minerals, This Creek I call Roloje a at those Allom banks Shields joined in with two Deer

Camped on the S. S. a Great Deel of Elk Sign fresh Capt. Lewis took a Dost of Salts this evening to carry off the effects of (arsenec) or cobalt which he was trying to find out the real quallity (2) passed a Clift of Rock much impregnated with alum, Containing also a great quantity of Cabalt

ordered a Vote of the men for a Sergeant of the three highest numbers a choice to be made Gass Bratton & Gibson- Gass is worth remark, that my Ink after Standing in the pot 3 or four days Soaks up & becons thick