Union County, New Jersey /

"April 1985."

A VEGETATION RECONSTRUCTION OF UNION COUNTY, PENNSYLVANIA DURING THE EARLY HISTORICAL PERIOD (1755-1855)

This thesis assesses relationships between vegetation and topography and the impact of human tree-cutting on the vegetation of Union County during the early historical era (1755-1855). I use early warrant maps and forestry maps from the Pennsylvania historical archives and a warrantee map from the Union County courthouse depicting the distribution of witness trees and non-tree surveyed markers (posts and stones) in early European settlement land surveys to reconstruct the vegetation and compare vegetation by broad scale (mountains and valleys) and local scale (topographic classes with mountains and valleys) topography. I calculated marker density based on 2 km x 2 km grid cells to assess tree-cutting impacts. Valleys were mostly forests dominated by white oak (Quercus alba) with abundant hickory (Carya spp.), pine (Pinus spp.), and black oak (Quercus velutina), while pine dominated what were mostly pine-oak forests in the mountains. Within the valleys, pine was strongly associated with hilltops, eastern hemlock (Tsuga canadensis) was abundant on north slopes, hickory was associated with south slopes, and riparian zones had high frequencies of ash (Fraxinus spp.) and hickory. In the mountains, white oak was infrequent on south slopes, chestnut (Castanea dentata) was more abundant on south slopes and ridgetops than north slopes and mountain coves, and white oak and maple (Acer spp.) were common in riparian zones. Marker density analysis suggests that trees were still common over most of the landscape by 1855. The findings suggest there were large differences in vegetation between valleys and mountains due in part to differences in elevation, and vegetation differed more by topographic classes in the valleys than in the mountains. Possible areas of tree-cutting were evenly distributed by topographic classes, suggesting Europeans settlers were clearing land and harvesting timber in most areas of Union County.

Our Campbell ancestors, 1742-1937. Traditions and history of the family of five Campbell brothers and sisters; John, James Douglas, Hester, Mary and Samuel: including what is known of them in New Jersey; York county, Pennsylvania; Union county, South Carolina and in Ohio. A genealogy of the known descendants of John Campbell through his son James, and Samuel Campbell through his son Ralph, also brief ancestral notes on families connected by marriage with the foregoing; viz; Parnell, Clark, Spray, Wilson, Haskett, Mendenhall and Underhill,

Bibliographical foot-notes.

[County land cover maps]

Mode of access: Internet.

A checklist of Illinois State Library's complete holding of Illinois county land ownership maps and atlases.

Description based on: Dec. 1992; title from cover.

Illinois State Library's complete holdings of Illinois county land ownership maps and atlases.

"Jesse White, Secretary of State & State Librarian."

Spatial analysis of pertussis cases in Harris County from 2005-2010

Objective: This study examined the recent trends and characteristics of reported pertussis in Harris County from 2005-2010. ^ Methods: The study population included surveillance data from all reported pertussis cases from January 1, 2005 to December 31, 2010 to Harris County Public Health and Environmental Services (HCPHES). We calculated incidence and attack rates for varying age groups, race/ethnicity, and gender. Spatial analyses were conducted of hot spot and cluster of incident cases in Harris County census tracts. Maps were constructed using geographic information system. ^ Results: Age-specific incidence rates of reported cases of pertussis were highest among infants under a year of age and lowest among adults age 20 and older. Hispanics represented the most cases reported compared to any other race or ethnic group (42% of 483 cases). Age-adjusted rates were highest in 2009 at 9.81 cases per 100,000 population. Only 31.2% of people received at least four of the recommended five doses of vaccine. Spatial analyses revealed statistically significant clusters within the northeast region of Harris County. ^ Conclusions: Hispanic infants are the most at risk group for pertussis. Although 70% of cases had a history of immunization, 41.8% of infants were appropriately vaccinated for their age. Increased vaccination coverage may decrease the incidence of pertussis.^

Map of the town of Petersham, Worcester County, Massachusetts

from actual survey by E .M. Woodford.

Burlington County, New Jersey /

UTM and state grids.

Bergen County, New Jersey /

"September 1986."

Cape May County, New Jersey /

"March 1985."

Camden County, New Jersey /

"May 1985."

Cumberland County, New Jersey /

Alternate title in right lower margin: Cumberland Co., N.J. : N3910--W7450/24.5X37 1978.

Cumberland County, New Jersey /

"May 1985."