63,889 research outputs found
Preliminary isotope heater locations and masking pattern Passive Seismic Experiment Package Central Station
No full textA series of parametric thermal studies have been carried out to determine the optimum locations for the two heaters and the optimum masking pattern.prepared by R. J. Simms
Final isotope heater locations and masking pattern -- Passive Seismic Experiment Package Central Station
No full textThe parametric studies have been completed. Since the thermal characteristics of the three configurations were so similar, the selection was primarily based upon mechanical considerations. A unique rectangular masking pattern has been found which, within the assumptions discussed, satisfy the specified thermal plate average temperature limits, of -65 F to +140 F.prepared by R. J. Simms
Letter from J. R. Eakin to Arthur G. Ringland
No full textLetter (copy) from J. R. Eakin to Arthur C. Ringland about the alignment of 40 acres near the Buggeln ranch
Letter from Arno B. Cammerer to J. R. Eakin
No full textLetter from Arno B. Cammerer to J. R. Eakin describing the procedure for purchasing Bright Angel Trail
Letter from J. R. Eakin to Carl Hayden
No full textLetter from J. R. Eakin to Carl T. Hayden concerning access to Rowe Well and the canyon
Letter from J. R. Eakin to Stephen Mather
No full textLetter from J. R. Eakin to Stephen T. Mather about expenses and reconstruction of the Kaibab Trail
Letter from Carl Hayden to J. R. Eakin
No full textLetter from Carl T. Hayden to J. R. Eakin regarding changes to the Grand Canyon National Park boundaries and the purchase of lands from William Randolph Hearst
Letter from J. R. Eakin to Stephen Mather
No full textLetter from J. R. Eaking to the National Park Service director about changes to the Grand Canyon National Park boundaries, and access to water near the Buggeln property on Desert View road
[Letter from J. R. Roberts to Sister, November 24, 1878]
No full textLetter from J. R. Roberts to sister. J. R. thanked his sister for gifts that were sent and went on to update her on what was happening in their families' lives. The letter ended with a mention that people were searching for land claims in the area and the author wanted their mother to not worry about them
Letter from J. R. Eakin, Grand Canyon National Park to Carl Hayden
No full textLetter from J. R. Eakin to Carl Hayden regarding the sale of Bass properties to the Santa Fe Railroad Company
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