This rapid mass spectrograph (on a GC Recording Chart) is a scan of an unknown gas.
And Graphic Controls makes recording charts for 155 other R & D instruments.
Take your choice. Strip, rectangular or circular—over 3 0 , 0 0 0 different recording charts. For oscillographs, spectrometers, chromatographs, event recorders and X-Y plotters. And five different writing methods—heat, pressure, electro, photo and ink. Special papers too, like mylar, and translucent vellum. That's the kind of selection you get when you order
all your charts from Graphic Controls—THE chartmaker. You'll save time and money, too. Specify GC Recording Charts and see for yourself.
RECORDING CHART DIVISION
G R A P H I C CONTROLS 189
Circle No. 161 on Readers' Service Card
VAN
RENSSELAER
STREET,
CORPORATION
BUFFALO,
NEW
YORK
14210
