AutoAnalyzer® operators! Thomas has a question for you.

Suppose we could make your recorder write like this?

Naturally, we can't. Actually, we can do something better. We can connect a Thomas Retransmitting Potentiometer to your recorder, hook it up to our con­centration readout-peak detector-printout system and give you a serialized paper tape printout that looks like this:

3 0 0 0 0 2 4 7 3 0 0 1 0 2 9 8 3 0 0 2 0 1 3 2 3 0 0 3 0 0 7 1 30 04 0 1 6 6 3 0 0 5 0 1 9 0 3 0 0 6 0 2 1 3 3 0 0 7 0 1 6 7 3 0 0 8 0 1 8 8 3 0 0 9 0 1 6 2 3 0 1 0 014 9 U N ι ι Test Code

1 Autoanalyze r Direct Sample Concentration, Cup Transmittance,

Dr Absi jrbance

It's all there: the type of test, the sample cup number, and the result in mg% or whatever unit you need. What 's missing? Calibration curves? You don't need them. Over­lays? You don't need them, either. The errors made in plotting and transcribing data? Nobody needs them. ^Registered trademark of Technicon Corporation.

This little picture shows how the whole package looks when set beside your recorder. Let us give you the big picture. Call or write us for details or a demonstration.

ARTHUR H. THOMAS COMPANY VINE STREET AT 3RD · PHILADELPHIA, PA. 19105 Better results from good instruments through Thomas accessories

Circle No. 102 on Readers' Service Card

64 A . ANALYTICAL CHEMISTRY. VOL. 42. NO. 9. AUGUST 1970