The Blocks Are Molded in a Wooden Form and Then Laid in a Mortar of Wet Snow, Which, When Frozen, Unites the Building into One Solid Mass (1922)

“Making Snow Building Blocks,” Popular Mechanics Magazine 37 (February 1922): 307.

Farragut Boat Club (1888)

The Chicago Clubs: Illustrated. (Chicago: Lanward Publishing Company, 1888).

Concrete Harbor Light House (1908)

H.R. Matthei and J. Guerni, "Design and Details of a Concrete Reinforced Harbor Lighthouse" (BS Thesis, Armour Institute of Technology, 1908).