Lyndon, Saline and Ann Arbor (Mich.) residences and business, ca. 1874

Left to right: Woodside Res. of N.B. Cole, Ann Arbor, Mich. for sale; Res. of John K. Yocum, Sec. 30, Lyndon Tp. Mich; Corner Main & Liberty Sts., Ann Arbor, Mich.; C. Parsons, dealer in dry goods, boots & shoes, hats, caps &c., Saline Mich. Publication information: Chicago, Ill. : Everts & Stewart, 1874.

Panoramic view of the city of Ann Arbor, Washtenaw Co. Michigan, 1880

not drawn to scale; Oriented with north to the upper right.

South half the city of Ann Arbor published by Everts and Stewart [plat] [Wards 2, 1, and 6]

Publication information: Chicago, Ill. : Everts & Stewart, 1874. [pages 110 and 111 of the original volume were scanned separately and edited intoa single image file.]

View of the Huron at Ann Arbor, Michigan

[From Jasper Cropsey Sketch book, 1855-1856]

Map of part of Ann Arbor, Mich.

Shows Ann Arbor south of S. University Ave. and east of State St. Publication information: Chicago : Geo. A. Ogle & Co., 1915

Ann Arbor, Mich. East An Street

On verso: Ann Street ffrom 14th St. (14th St. is now Zina Pitcher. This image is looking west toward what isn ow Glenn Ave.)

Union (Ann Arbor) High School 1856-1879

On verso: N.E. corner E. Washington and State Street

Mack and Company store fire on May 15, 1899; Ann Arbor, Mich.

Mack and Company store fire on 15 May 1899 at 1:30 pm on Main St. Ann Arbor's first large department store. Source: MHC

Motor and Cars of the Ypsilanti and Ann Arbor Street Railway. - Showing Military Company

Streetcars. On verso: Train and Military Company from Nov. 1895 MichStoner, Claude Thomas, 1899-1977igan Central Magazine, "Headlight"

Engineering Building, Ann Arbor, Mich.

Originally one of four buildings on campus. Used as professor's house 1840-1877 (S. University where Clements Library stands). Used as Dental College 1877-1891; wing added on East 1891. In 1891, building enlarged to north and third story added. Entrance changed to West facade. Used by Engineering until 1922 when it was removed. After 1904, it was called the Old Engineering Building. Signature on verso: W.A. Lewis [Lewis was a student at UM in the late 1890's]

Winter scene of U of M campus. Library in Back Ground [sic] Ann Arbor, Mich.

Ware and Van Brunt, architect. An addition was built to the south in 1898. The 1883 portion was torn down in 1918.

Botanical Garden and Library, University of Michigan, Ann Arbor, Mich.

Ware and Van Brunt, architect. An addition was built to the south in 1898. The 1883 portion was torn down in 1918. Handwritten on front: This was the last spot visited by N.B.G.S. August 18th 1900.

Medical Building Ann Arbor, Mich.

First medical building, built 1850, addition in 1864, used until West Medical was completed in 1903. Fire in 1911 destroyed west half, remainder, including portico, razed in 1914. View from the Southeast.

Evaluating approaches and technologies for monitoring organic contaminants in the aquatic environment, Ann Arbor, MI, July 21-23, 2006: workshop proceedings

The Alliance for Coastal Technologies (ACT) convened a workshop on Evaluating Approaches and Technologies for Monitoring Organic Contaminants in the Aquatic Environment in Ann Arbor, MI on July 21-23, 2006. The primary objectives of this workshop were to: 1) identify the priority management information needs relative to organic contaminant loading; 2) explore the most appropriate approaches to estimating mass loading; and 3) evaluate the current status of the sensor technology. To meet these objectives, a mixture of leading research scientists, resource managers, and industry representatives were brought together for a focused two-day workshop. The workshop featured four plenary talks followed by breakout sessions in which arranged groups of participants where charged to respond to a series of focused discussion questions. At present, there are major concerns about the inadequacies in approaches and technologies for quantifying mass emissions and detection of organic contaminants for protecting municipal water supplies and receiving waters. Managers use estimates of land-based contaminant loadings to rivers, lakes, and oceans to assess relative risk among various contaminant sources, determine compliance with regulatory standards, and define progress in source reduction. However, accurately quantifying contaminant loading remains a major challenge. Loading occurs over a range of hydrologic conditions, requiring measurement technologies that can accommodate a broad range of ambient conditions. In addition, in situ chemical sensors that provide a means for acquiring continuous concentration measurements are still under development, particularly for organic contaminants that typically occur at low concentrations. Better approaches and strategies for estimating contaminant loading, including evaluations of both sampling design and sensor technologies, need to be identified. The following general recommendations were made in an effort to advance future organic contaminant monitoring: 1. Improve the understanding of material balance in aquatic systems and the relationship between potential surrogate measures (e.g., DOC, chlorophyll, particle size distribution) and target constituents. 2. Develop continuous real-time sensors to be used by managers as screening measures and triggers for more intensive monitoring. 3. Pursue surrogate measures and indicators of organic pollutant contamination, such as CDOM, turbidity, or non-equilibrium partitioning. 4. Develop continuous field-deployable sensors for PCBs, PAHs, pyrethroids, and emerging contaminants of concern and develop strategies that couple sampling approaches with tools that incorporate sensor synergy (i.e., measure appropriate surrogates along with the dissolved organics to allow full mass emission estimation).[PDF contains 20 pages]