Illinois Society of Architects · Chicago · leaf 529
of great intensity are produced. The lamp for the pi-oduction of ulti-a vio-let radiation must necessaril\- be made of([uartz (fused rock crystal) a.s this is theonly known solid .substance except icethrough which ultra violet rays will passwithout losing their intensity. Glass whichis transparent… … The Sovereign Hotel W. W. Ahlschlager. Architeet Pluiiiliiii^^ work started October 11, 1922. euiii|)leted October 13. 1923 INSTALLATION BY Federal Engineering Company (NOT INC..) PLUMBING and HEATINGCONTRACTORS Poircr Plants Boilers Pumps Engines ?,21() SOUTH MICHIGAN BLVD.CHICAGO rclcphoiic \…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
