Letter from Carl Hayden to W. W. Bass concerning the passing of the national park bill. Hayden states that he will try to make the bill as advantageous to Arizona miners and farmers as possible, but the land will either remain as a national monument or become a national park. A postscript is added concerning the land allocated for the Havasupai Tribe.

Letter from Carl Hayden to Bankhead and Henderson informing the company that their sheep can continue to graze inside the national park boundaries for the year 1923 as long as they obey the permit rules. Hayden issues a warning that at a certain point no cattle or sheep will be allowed to graze inside the park.

Argues that the canons of evidence that apply to artifactual evidence of prehistoric behavior patterns are sometimes distinct from those that apply to non-artifactual evidence, and the logic and archaeological value of the latter is not less simply because it is different. The essay is intended to instruct and sensitise archaeologists to this issue as much as it is to allay concern that the pollen evidence for Archaic maize cultivation at the Koster site may not be credible. 49 p. Also see Schoenwetter 1994