. Architect and engineer. Progress work on the Golden GateBridse with late pictures and an or-iginal etching by Chesley 41 to 48 AUGUST 1933 Otis Company invites 3^ou to visit its elevator machinerooms now on exhibition at the top ofeach SkYRIDE tower at A Century ofProgress, Chicago. You are also invited to inspect anew type of high-speed escalator nowin operation at the Travel and Trans-port Building at the south end of theFair. This is its first showing in America. We believe you will bring back anewly crystallized conception ot verticaltransportation. UNITY. IN TE
. Architect and engineer. Progress work on the Golden GateBridse with late pictures and an or-iginal etching by Chesley 41 to 48 AUGUST 1933 Otis Company invites 3^ou to visit its elevator machinerooms now on exhibition at the top ofeach SkYRIDE tower at A Century ofProgress, Chicago. You are also invited to inspect anew type of high-speed escalator nowin operation at the Travel and Trans-port Building at the south end of theFair. This is its first showing in America. We believe you will bring back anewly crystallized conception ot verticaltransportation. UNITY. IN TEMPERATURE CONTROL SYSTEMS Like an arch built piecemeal, withoutregard for the whole, an unrelated col-lection of automatic temperature controldevices is useless. Only the JOHNSONSERVICE COMPANY offers correlateddevices, intelligent application, carefulinstallation — all necessary to successfuloperation. An automatic temperature sys-tem may be truly the Brain of theheating, ventilating, and air conditioninginstallation. But it achieves that end onlywhen each device bears the proper re-lationship to every related part of thesystem. No haphazard arrangement of control apparatus can compete with aunified, correlated JOHNSON other organization can offer such un-divided responsibility, such continuity ofservice. JOHNSON is Manufacturer, Engi-neer, Contractor, not merely sellingtemperature and humidity control de-vices, but a contracting organization forcomplete Systems, Installation,Service. JOHNSON engineers and me-chanics, especially trained, operate frommore than 30 bran
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