Illinois Society of Architects · Chicago · leaf 532
results of tests on house heatingapparatus. These tests have been made ondifferent kinds of house heating apparatuswitli different kinds of fuel. The bulletinembodies the results of about three hundredtests. These bulletins are for free distribu-tion. VENTILATION. The term ventilation, when used in… … Oval 8 xl2 with our labor saving square bottom Saves money in installing
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-448-271.webp)
