NEWS
broadened to cover the bureau's tech nical program as completely as pos sible. Other current publications changes include the initiation of two new nonperiodical publication series, M o n o g r a p h s and Technical Notes. T h e Journal of Research of the N a tional B u r e a u of S t a n d a r d s is t h e basic medium b y which the bureau reports its findings to the scientific community. T h e Journal contains comprehensive research papers which give complete details of the work, including labora tory data, experimental procedures, and theoretical and mathematical analyses. As now published, t h e content of the Journal is as broad as the bureau's scientific program, embracing most fields of the physical sciences as well as various branches of engineering. T h e division of the Journal into separate sections is an effort to meet more ef fectively the specialized needs of t o day's scientists, engineers, a n d m a t h e maticians. Henceforth the individual reader need subscribe only to those sec tions of the Journal t h a t fall within his particular field of interest. The Journal is being divided into the following sections, each available upon yearly subscriptions from the Super intendent of Documents, G o v e r n m e n t Printing Office, Washington 25, D . C , a t t h e prices indicated.
Leonard Greensburg, commissioner of New York City's Department of A i r Pollution C o n t r o l , points t o apparatus used in recent on-the-spot tests for carbon monoxide concentration due t o street traffic. The equipment, a Mine Safety Appliances Lira analyzer, was modified t o measure 0 t o 20 p.p.m. Test site above is located at the Manhattan end of the Queensborough Bridge Section A : Physics and Chemistry, 6 times a year, $4.00. Section Β : M a t h e m a t i c s and M a t h e matical Physics, quarterly, $2.25.
NOW . . . an automatic, recording CHROMATOGRAPHIC REFRACTOMETER
that cuts research work
up to 7 5 % No longer it it necessary f o r y o u t o p e r f o r m a l l t h e time-consuming w o r k associated w i t h chromatographic analysis. This differential r e f r a c t o m e t e r does a l l t h e w o r k — r e l i a b l y — accurately. S i m p l y start the test, a n d the analysis is m a d e a u t o m a t i c a l l y — u n a t t e n d e d . The final product . . . a n accurate, p e r m a n e n t recording of the results . . . a record you can e x a m i n e i m m e d i a t e l y or file for f u t u r e use. O p e r a t i o n is so simple that even y o u r most i n e x p e r i e n c e d personnel can p e r f o r m critical analyses w i t h ease. W h a t ' s m o r e , w h e r e g r e a t d i f f e r e n t i a l s a r e encountered the exclusive Phoenix r a n g e - e x t e n s i o n system permits set ting the indicator on scale w i t h o u t the a n noyance of changing cells . . . w i t h o u t upsetting the zero c a l i b r a t i o n . . . and w i t h o u t loss of sensitivity or accuracy. A single d i a l adjust ment is all that's r e q u i r e d . SEND FOR BULLETIN R-1000. No o b l i g a t i o n . For y o u r convenience, just a t t a c h this ad to y o u r l e t t e r h e a d — or w r i t e :
Il III Circle No. 1ST on Readers' Service Card
48 A
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ANALYTICAL CHEMISTRY
PHOENIX PRECISION INSTRUMENT CO. 3805 N. 5th STREET. PHILADELPHIA 40. PA.
Section C : Engineering and I n s t r u mentation, quarterly, $2.25. Section D : Radio Propagation, 6 times a year, $4.00.
A n a l y t i c a l Chemists in Industry "Utilization of Analytical Chemists in I n d u s t r y " will be the subject of one of the symposia at the fall meeting of the Division of Analytical Chemistry a t Atlantic City, Sept. 13 to 18. This symposium is being organized in a different m a n n e r t h a n t h a t nor mally used in the ACS so as to obtain more member participation. T h e meet ing will be scheduled for a 3-hour pe riod. T h e first hour will be devoted to six 10-minute discussions b y mem bers of the panel covering the follow ing points of view: a professor of analytical chemistry, an analytical chemistry graduate student, a research director, a director of analytical chem istry, a n industrial analytical chemist, administrative research management. T h e second hour will be round-table discussions a t individual tables of 8 to 10. E a c h table will have a discussion leader who will encourage the people at his table to discuss the subjects which have been brought out by the panel. E a c h table will be asked to develop questions which will be suit able to be asked of the panel during Hie third hour when the panel will be re sumed for a question and answer period.
