Henry Carvel Lewis (1853-1888) was a graduate of the University of Pennsylvania, resident of Germantown, and active member of the Academy of Natural Sciences of Philadelphia, who sought an inexpensive and accurate polariscope that could be used to measure the optic-axial divergence in minerals. By 1880, James W. Queen & Co. had produced an instrument suitable for his purposes. This project probably led to the reflecting polariscope that Queen introduced to market a few years later. This example of that instrument was used at Mount St. Mary’s College in western Maryland. The inscription on the wooden frame reads "J.W. QUEEN & Co. / PHILA."

Ref: “A New Polariscope,” Proceedings of the Academy of Natural Sciences of Philadelphia 32 (1880): 241.

James W. Queen & Co., Special List of New Polariscopes and Polarizing Objects for the Use of Schools and Colleges (Philadelphia, 1887).

James. W. Queen & Co., Catalogue and Price-List of Instruments and Apparatus Used in Physical Optics (Philadelphia, 1892).

Maker: James W. Queen & Co.

Location: Currently not on view

Place Made: United States: Pennsylvania, Philadelphia

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Credit Line: Mount St. Mary's College

Data Source: National Museum of American History

Id Number: PH.326106Catalog Number: 326106Accession Number: 257245

Object Name: polariscope

Measurements: overall: 9 in x 3 3/4 in x 15 in; 22.86 cm x 9.525 cm x 38.1 cmoverall: 8 1/2 in x 3 3/4 in x 15 1/8 in; 21.59 cm x 9.525 cm x 38.4175 cm

Guid: http://n2t.net/ark:/65665/ng49ca746aa-3c6b-704b-e053-15f76fa0b4fa

Record Id: nmah_1184035

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