SS-l Superspeed— " the workhorse of the modem laboratory"

32,700 χ G Small & Medium Centrifuges 5 rotors on one base

SS-l Superspeed with Con­tinuous Flow System

SS-3 Automatic Super speed 17,000 rpm 34,800 χ G

SS-l Enclosed Super-spHPd Fntin· Control

Panel snaps out for r-.mMe operation

From the SERVALL Small and Medium Centri­fuges that offer five different rotors on one basic motor assembly plus a huge variety of tube com­binations, to the RC-2, the latest in Refrigerated Centrifugation, SERVALL Centrifuges Serve You Best.

The SERVALL SS-l Superspeed, SS-3 Auto­matic Superspeed, SS-4 Enclosed Superspeed and RC-2 Automatic Refrigerated Superspeed Cen­trifuges, all designed to accept the unique SERV­ALL 8 to 2 Tube Direct Sedimentation Continu­ous Flow System, lead the field in a junctional versatility that is determined by one thing: the modern researcher's requirements—your require­ments.

Automation, special rotors such as particle counting and field-aligning, high centrifugal force, safety features, operational reliability and simplicity, whichever is your major concern SERVALL specifications cover it.

And remember, in the U.S. you get direct, personal service on all your needs from SERVALL-trained representatives. In Canada and elsewhere SERVALL Centrifuges and Instruments are avail­able from specially appointed distributors.

For that additional centrifuge, or replacement of out-moded or inadequate equipment, do what thousands of others do, select a SERVALL, the centrifuge that has been proved in operation.

SEE US AT BOOTH 57 NIH Research Equip. Exhib. and BOOTH 348 Chemical Exposition, U.S.A. 196b RC-2 Automatic Refrigerated Centrifuge -

basic unit includes standard 8 χ 50 ml Superspeed Rotor — up to 37,000 χ G

ILLUSTRATED LITERATURE UPON REQUEST FOR CATALOG AC-96C

Circle No. 17 on Readers' Service Card

RIGHT ACROSS THE BOARD S E R V A L L ®

CENTRIFUCES SERVE YOU BEST!

Ivan Sorvall. Inc. Norwalk, Connecticut

VOL. 32, NO. 10, SEPTEMBER 1960 · 4 5 A

SERVALL