UA30/1/1 Felts Log House

Site plan indicating the location of the Felts Log Cabin in relation to the Kentucky Building. Drawing includes driveways, sidewalks, parking lot, trees and elevation marks

The Ethnohistory of Baker Cabin, a Clackamas County Pioneer Site

Baker Cabin, a pioneer log structure, is located on privately owned property near the community of Carver, Oregon. According to traditional accounts the cabin has existed continuously on this site since its construction in 1856. Archaeological excavations of the cabin\u27s foundation and the surrounding area uncovered date-able artifacts and a second foundation with an associated well. Analysis of the artifacts associated with the present cabin foundation indicate a post-1870 construction date those associated with the second foundation and its well indicate an 1850’s occupation. Four hypotheses that are explored in this paper can be derived from the interpretation of all available data: Baker Cabin was constructed in 1856 at a presently undiscovered site on the claim but was moved to its present location about 1870. Baker Cabin was constructed in 1856 on the precise spot that it now stands but reconstruction by the Old Timers\u27 Association involved a complete rebuilding of the foundation. Baker Cabin was constructed in 1856 on the present foundation but extensive repairs were done on the foundation in the 1870\u27s. The old foundation represents a smaller cabin occupied from the late 1840\u27s until 1856. The old foundation with its associated well represents the original construction am habitation of the site. The present cabin is not the original 1856 cabin referred to in tradition but is rather a cabin constructed about 1870. Data used in this research include excavated materials, informant interviews, and historical documents. The excavated materials consist of glass and pottery sherds, buttons, cartridges, and toys. Informants interviewed are Baker descendants, and they provided recollections, documents, and pictures. Historical documents used included census and tax assessment records, newspapers, Donation Land Claim material, and family ledgers. Results of this research reveal that the authentic history of Baker Cabin will not be known unless further evidence becomes available. The first two hypotheses would seem to have no validity, however, the third and fourth hypotheses can be supported by the available data

SNAKE ASSEMBLAGE STRUCTURES AND SEASONAL ACTIVITY PATTERNS ON A MILITARY BASE IN SOUTH-CENTRAL PENNSYLVANIA:: LAND MANAGEMENT IMPLICATIONS FOR SNAKE CONSERVATION

We ascertained the assemblage structures of snakes occurring in a mixed habitat matrix of natural and disturbed habitats during 2008–2011 at Letterkenny Army Depot (LEAD), a 7200 ha U.S. Army base in south-central Pennsylvania, to understand the patterns of species abundance as they related to habitat type of managed lands. We detected eight species in 12 sites comprising natural and disturbed habitats of wetlands, forest, and thicket and open fields. The Common Gartersnake (Thamnophis sirtalis) occurred in the most sites, the Red-bellied Snake (Storeria occipitomaculata) was the rarest species in the study. Two to six species occupied each site and were distributed unevenly. Dynamics of assemblages could be explained in part by habitat and also by the presence of the North American Racer (Coluber constrictor). All species for which data were available exhibited a unimodal pattern to their seasonal activity (mostly May and June); however, seasonal activity peaks differed between sexes. Sex ratios varied among species but were consistently female–biased in the Common Gartersnake and Ring-necked Snake (Diadophis punctatus) in Pennsylvania and surrounding areas. As elsewhere in Pennsylvania and the Northeast, body sizes of adults were larger for species syntopic with the North American Racer than for species not syntopic with this potential predator. We found a degree of predictability with respect to snake assemblage dynamics among habitats at LEAD, which in turn can prove useful in resource management of this large and protected human-impacted system

A practical approach to helicopter internal noise prediction

A practical and well correlated procedure for predicting helicopter internal noise is presented. It accounts for the propagation of noise along multiple paths on an octave by octave basis. The method is sufficiently general to be applicable to conventional helicopters as well as other aircraft types, when the appropriate structural geometry, noise source strengths, and material acoustic properties are defined. A guide is provided for the prediction of various helicopter noise sources over a wide range of horsepower for use when measured data are not available. The method is applied to the prediction of the interior levels of the Civil Helicopter Research Aircraft (CHRA), both with and without soundproofing installed. Results include good correlation with measured levels and prediction of the speech interference level within 1.5 db at all conditions. A sample problem is also shown illustrating the use of the procedure. This example calculates the engine casing noise observed in the passenger cabin of the CHRA