An assessment of the water quality of the Mississippi River Basin-north derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An assessment of the water quality of the Wabash River basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

Conquest of the country northwest of the river Ohio, 1778-1783 & life of Gen. George Rogers Clark.

At head of title: Introductory volumes to English's History of Indiana.

Conquest of the country northwest of the river Ohio 1778-1783;

Mode of access: Internet.

Planting plan for River Forest park no. 1

Ink on linen; location, type, amounts of plantings; grape arbors, tennis courts; note: "del, F.E.H."; signed; 56 x 33 cm; Scale: 1" = 20' [from photographic copy by Lance Burgharrdt]

Preliminary sketch plan. Park #3. River Forest Park District

Pencil on tracing paper; sketch with location of plantings; signed;; 108 x 99 cm; Scale: 1" = 10' [from photographic copy by Lance Burgharrdt]

Planting plan for River Forest Park District #2... Section #2

Pencil on tracing paper; location, type, amounts of plantings; signed; 53 x 66 cm; Scale: 1" = 20' [from photographic copy by Lance Burgharrdt]

Planting plan for River Forest Park District #2. Section #3.

Pencil on tracing paper; location, type, amounts of plantings; council ring, pool; along right edge, "Soo Line" railroad runs; notes; signed; 63 x 61 cm.; Scale: 1" = 20' [from photographic copy by Lance Burgharrdt]

River Forest park. District #2. Water system.

Pencil on tracing paper; location of pipes for entire park; bordered at top by Lake Ave., at left, by Keystone Ave; unsigned;; 98 x 60 cm.; No scale [from photographic copy by Lance Burgharrdt]

Estimates of long-term suspended-sediment loads in Bay Creek at Nebo, Pike County, Illinois, 1940-80 /

Bibliography: p. 6.

Spatio-temporal analyses of West Nile virus transmission in Culex mosquitoes in northern Illinois, USA, 2004

After a severe outbreak of West Nile virus (WNV) in Cook County, Illinois, in 2002, detections of WNV in mosquitoes were frequent across the state in the following years despite small numbers of human cases. We conducted a spatio-temporal analysis of Culex (subgenus Culex) mosquitoes collected in 2004 in three mosquito abatement districts (MAD) in Cook County by calculating monthly estimates of mosquito density, prevalence of infected mosquitoes, and exposure intensity, which in turn is a product of mosquito density and infection rates. Mosquito infections were detected early at three sites in late May and were widely detected throughout the three MADs in the summer with infection rates as high as 13 per 1000 in August. Exposure intensities were higher at sites adjacent to the Des Plaines River, especially in August and September. The aggregated pattern of WNV transmission along the river might be related to the existence of substantial forest preserves and wetlands that might produce ecological conditions favorable for mosquito proliferation and interactions between mosquitoes and birds.

Can We Change the Future by Predicting It? Presented in special Session II at the Forty-Eighth Annual Meeting of the Upper Mississippi River Conservation Committee, St. James hotel Red Wing, Minnesota, March 10-12, 1992

issued December 1, 1993

Geographic Variation of Notified Ross River Virus Infections in Queensland, Australia, 1985-1996

The spatial and temporal variations of Ross River virus infections reported in Queensland, Australia, between 1985 and 1996 were studied by using the Geographic Information System. The notified cases of Ross River virus infection came from 489 localities between 1985 and 1988, 805 between 1989 and 1992, and 1,157 between 1993 and 1996 (chi2(df = 2) = 680.9; P < 0.001). There was a marked increase in the number of localities where the cases were reported by 65 percent for the period of 1989-1992 and 137 percent for 1993-1996, compared with that for 1985-1988. The geographic distribution of the notified Ross River virus cases has expanded in Queensland over recent years. As Ross River virus disease has impacted considerably on tourism and industry, as well as on residents of affected areas, more research is required to explore the causes of the geographic expansion of the notified Ross River virus infections.