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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: 2013-11-12 

Description: A cut and polished azurite malachite nodule from the mineral collection of Ferdinand Hotz at the University of Wisconsin Geology Museum. Azurite and malach...

Photograph

Emerald in Matrix

Date: 2013-11-12 

Description: A specimen of emerald in matrix from the mineral collection of Ferdinand Hotz at the University of Wisconsin Geology Museum.

Learn about the origin, and the many spellings and erronious meanings of Wisconsin

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: 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

Charles Whittlesey

Date: 1858 

Description: Studio portrait of geologist Charles Whittlesey dressed for a field trip.

Date: 1865 

Description: Map of Wisconsin showing the location of meteorological stations. Drawn the last year of the Civil War, this thematic 1865 map of Wisconsin shows the effec...

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...

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...

Date: 1910 ca.

Description: Cyanotype print of the interior of the Geology Museum in Science Hall on the University of Wisconsin-Madison campus. View towards corner of a room with win...

Date: 1953-06-31 

Description: Professor Richard C. Emmons of the University of Wisconsin Geology Department who is holding a gem case of glass replicas of 10 of the largest and best-kno...

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...

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: 1938 

Description: Curtiss-Wright Condor biplane named "William Horlick" outfitted with skis for use during Adm. Richard E. Byrd's second Antarctic expedition, 1933-35. The...

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...

Increase Lapham's Cartes-de-visite Collection

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

Date: 1844 

Description: Title page of Increase Lapham's A Geographical and Topographical Description of Wisconsin published by P.C. Hale of Milwaukee, Wisconsin.

Date: 1883 ca.

Description: This map shows the geology of areas in Montana, the Dakotas, Nebraska, Wyoming, Idaho, Colorado, Kansas, Arizona, New Mexico, and Utah. Map also shows lak...

Date: 1870 

Description: Page from a diary kept by Increase Lapham in California between April 11 and May 19, 1870. The page shows a portion of a list of minerals of California.

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