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Date: 1830-12-22 

Description: Increase Lapham's drawing of the geological profile between the Sandusky plains and Portsmouth, Ohio.

Date: 1874 ca.

Description: A hand-colored, geological map of Wisconsin show the progress of the state geological survey in 1873 and 1874. Other elements displayed in the map include...

Date: 1904 

Description: This blue line print map includes 4 cross sections with relief shown by contours and spot heights. The topography was taken from the United States Geologic...

Date: 1955 

Description: This set of 32 maps and an index show the (then) proposed route of the Wisconsin Turnpike. The index shows the entire route of the turnpike, and the major...

Date: 1862 ca.

Description: This map shows the population by county, the basic geology, climate, and the distribution of timber within the state of Wisconsin. It shows mean seasonal t...

Date: 1839 

Description: This map shows the geological makeup of the valley in red, yellow, and green, the Mississippi River, and the location of Fort Crawford. The geology on the...

Date: 1864 ca.

Description: This map is pen and watercolor on paper and shows a profile and geological sections of the Blue Mounds, Hollow Run, Bogies Hollow Run, Bear Creek, East Bre...

Photograph

Dogtooth Calcite

Date: 2013-11-12 

Description: A dogtooth calcite specimen from the mineral collection of Ferdinand Hotz at the University of Wisconsin Geology Museum. The specimen is approximately thre...

Date: 1850-06-28 

Description: Letter from Increase Lapham to his wife, Ann Maria Alcott, in Milwaukee. Lapham was at Aztalan and wrote to Anna regarding the geology of the region. He in...

Increase Lapham's Cartes-de-visite Collection

View this magnificent collection of 19th century famous scientists collected by Wisconsin naturalist Increase Lapham.

Date: 1864 ca.

Description: This map is pen and watercolor on paper and shows a profile and geological sections of the Apple River, Little Otter Creek, Woods' Branch, Bonners' Branch,...

Date: 1957-03-26 

Description: George Hanson (seated foreground center), state geologist, peers into a microscope while examining a diamond. Leaning in to look on are (left to right) Pro...

Date:  date unknown

Description: Geological Map of the lead regions in Wisconsin, Illinois and Iowa.

Date: 1865 

Description: Map showing the location of meteorological stations and effects that Lake Michigan has had on Wisconsin temperatures in January and July. The map shows cou...

Date: 1864 ca.

Description: This map is pen and pencil on paper and shows a profile of the Blue Mound and East Blue Mound.

Date: 1892 

Description: This map shows rivers, lakes, railroad lines, roads, and communities in addition to geological data. The map includes cross-sections in the bottom margin a...

Date: 1828 

Description: Drawing by Increase Lapham showing the geological profile of the land between Utica and Knob Creek, Kentucky at a scale of 1/2 inch to a mile.

Photograph

Hematite Fan

Date: 2013-11-12 

Description: A hematite fan, approximately six inches in length, from the mineral collection of Ferdinand Hotz at the University of Wisconsin Geology Museum. This speci...

Manuscript

Earth Borer

Date: 1828 ca.

Description: Increase Lapham's drawing and description of an earth borer for his handwritten manuscript, Notes and Accounts of Canals, Particularly the Ohio Canal Ne...

Learn about the origin, and the many spellings and multiple meanings of "Wisconsin."
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