This collection consists of the annual student yearbooks at the Lewis Institute and Armour Institute of Technology, published between 1898 and 1940. The Lewis Annual ran from 1903 to 1940, the date of the combination of Lewis and Armour to create Illinois Tech. The AIT yearbook was known by three different titles: Integral (1898-1910), Senior Class Book (1911-1912), and The Cycle (1913-1940). Contents and organization of the yearbooks vary from year to year as student writers, photographers, and editors chose to include or exclude information of students by class year, members of faculty and administration, academic program, extracurricular activities, student organizations, and sports.

Scanning of the Armour Institute of Technology yearbooks was supported in part by an award from the Illinois State Historical Records Advisory Board, through funding from the National Historical Publications and Records Commission, National Archives and Records Administration.

Note: the entire run of the Lewis Annual is available at the CARLI Digital Collections site: 

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Integral, 1898
Integral, 1899
  Integral, 1900
Integral, 1901
Integral, 1903
Lewis Annual, 1903
The Cycle, 1926
The Cycle, 1922
Integral, 1904
Integral, 1905
Integral, 1906
The Cycle, 1913
Integral, 1910
Integral, 1909
The Cycle, 1914
Senior Class Book, 1912
The Cycle, 1921
Senior Class Book, 1911
The Cycle, 1923
The Cycle, 1925