The Expeditions of Zebulon Montgomery Pike, Volume 1 (of 3) / To Headwaters of the Mississippi River Through Louisiana Territory, and in New Spain, During the Years 1805-6-7.

by Zebulon Montgomery Pike

6. Quantity of lead per cwt. of mineral?

Ans. Seventy-five per cent.

7. Quantity of lead in pigs?

Ans. All we make, as we neither manufacture bar, sheet-lead, nor shot.

8. If mixed with any other mineral?

Ans. We have seen some copper, but having no person sufficiently acquainted with chemistry to make the experiment properly, cannot say as to the proportion it bears to the lead.

[Signed] Z. M. Pike.

Dubuque Lead Mines, Sept. 1st, 1805.

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[Art. 4.] Speech, Pike to the Sioux[V-4] (Part of Orig. No. 3, pp. 6-8), delivered at the entrance of the river St. Peter's, Sept. 23d, 1803.