Request for Mr. Izett to examine a thin section of tuff from Jim Smith Creek to determine if it was emplaced depositionally or by faulting.

Xeroxes of Jaggers field notes from 1893: Dead Creek traverse & to head of Rattlesnake Creek - 9 pages; SW Devil's Slide - 7 pages; Crandall & Ishawooa Quads - 11 pages. (See also Pierce file 3/15).

Employment correspondence; discussion of clastic dikes.

Discussion of low-angle faults mapped by Pierce on Clark Quad's west boundary; plus other brief correspondence.

Includes a letter in honor of Judson's retirement after 33 years at Princeton's Department of Geological and Geophysical Sciences and correspondence on Princeton Univ Conference Aug 25 - 27, 1974.

Correspondence discussing the length of time required to move the Heart Mountain block 30 miles: Kehle asks if "catastrophic" means a few hundred to 1,000 years; Pierce suggests a few hours for emplacement.

Correspondence which negates fault movement due to high pore pressure for Heart Mountain fault, and supports earthquake oscillations combined with gravity as the mechanism of movement on Heart Mountain fault.

Correspondence with a Yale geologist whose senior thesis at Univ of Calif was on the Heart Mountain calcibreccia. One of his advisors suggested that perhaps there was a thin zone of interbedded evaporite and dolomite at the break point which provided lubrication for movement on the fault. Pierce counters emphatically that the zone is well-exposed where it is not faulted and has no evidence for evaporites. Krill refers to Pierce's heart problems in 1976 and wishes him improved health.

Purchase orders for renting saddle horses for field work. Budget forms. Memo to use Br. Tech Support No. 953000. Fiscal Year 1972

United States Geological Survey expense account forms, monthly report and travel authorizations for Project No. 953010. Fiscal Year 1971