AC
BRIEFS
AP 100
APIEZON
AP 101
APIEZON
S i g n a l - t o - N o i s e R a t i o C h a r a c t e r i s t i c s of Photomultipliers and Photodiodes. A n E x c h a n g e of C o m m e n t s J . D. INGLE, Jr., a n d S. R. CROUCH, D e p a r t m e n t of C h e m istry, Oregon State University, Corvallis, Ore. 97331, a n d D e p a r t m e n t of C h e m i s t r y , Michigan State University, East L a n s i n g , M i c h . 48823 A n a l . C h e m . , 44,1709 (1972)
N E W APIEZON
anti-seize greases stop costly laboratory glassware breakage A P - 1 0 0 is a h i g h v a c u u m g r e a s e f o r u s e d o w n to 5 x 1 ο - 1 1 torr at 1 5 ° C , with a softening point of 3 0 ° C . A P - 1 0 1 is an a l l - p u r p o s e stop-cock grease for moder ate vacuum use down to 1 0 - 1 torr and a softening point of 185°C. These greases are resist ant to organic solvents and will not leach out of ground glass joints or stop-cocks.
Aids for Analytical Chemists I m p r o v e d Diffusion Dilution Cell for Introducing K n o w n S m a l l Q u a n t i t i e s of L i q u i d s i n t o G a s e s A N T H O N Y C. SAVITSKY a n d SIDNEY SIGGIA, D e p a r t m e n t of C h e m i s t r y , University of M a s s a c h u s e t t s , A m h e r s t , Mass. 01002 A n a l . C h e m . , 44, 1712(1972)
C. J . NEILSEN, System Design D e p a r t m e n t , C o m a l t e s t , Inc., C o m m e r c e Drive, D a n b u r y , C o n n . 06810, and J . D. S T U A R T , D e p a r t m e n t of C h e m i s t r y , T h e University of C o n n e c t i c u t , Storrs, C o n n . 06268
Men & Molecules New CASSETTES
P r e p a r a t i o n of H y d r o f l u o r i c , H y d r o c h l o r i c , a n d Nitric Acids at Ultralow Lead Levels
CANCER RESEARCH G
D
A n a l . C h e m . , 44,1715 (1972)
Modulated Power Supply*for Hollow C a t h o d e Light Sources
G
Cancer Research Ill—Chemotherapy Dr. C. Gordon Zubrod
G
A n a l . C h e m . , 44, 1718 (1972)
Dr. William J. Oorson
Aspirins, Enzymes, & Fragrant Redheads An Essay Report
G
Dr. Hector DeLuca
Probing Creation Or. Myron A. Coler New Directions in U.S. Science Dr William McElroy
ENVIRONMENT
Birth Control: Problems & Prospects Dr. Carl Djerassi Hormones, Terpenes, & the German Air Force Dr. A. J. Birch
D
Prospects for Implants Dr. Donald Lyman New Dimensions for Polymers
D
Fabricating Life
D
Bubble Machines & Pollution Finders Dr Κ. Patel & Dr L Kreuar The Steam Engine: A Modern Approach Dr W Doerner & Dr. M. Bechtold
Π
Mercury: Another Look, Part I Dr John Wood Mercury: Another Look, Part II Or. John Wood &D G. Langley
D
The Troubles with Water Dr. Daniel Okun Pure Oxygen for Polluted Water Dr.JackMcWhirter
Dr. Alan Michaels
An Essay Report Or. R. W. F. Hardy
ACS Members Single Cassette Any Six Cassettes
K. I. ASPILA, C. L. C H A K R A B A R T I , and M. P. BRATZEL, Jr., D e p a r t m e n t of C h e m i s t r y , Carleton University, O t t a w a , Ontario K1S 5B6, Canada
Dr. J. Julian Chisolm, Jr.
Vitamin D: A New Dimension
BIOMEDICAL
N e w Ways to Better Food
Pica
Technology in the Nursery
Cancer Research V—Environmental Agents Dr. Umberto Saffirjtti Cancer Research V I — N C I Roundtable
D
A n a l . C h e m . , 44, 1716(1972)
Pyrolytic G r a p h i t e - T u b e Micro-Furnace for T r a c e A n a l y s i s by A t o m i c A b s o r p t i o n S p e c t r o m e t r y
SCIENCE
Cancer Research I—Perspective & Progress Or. Frank Rauscher Cancer Research II—Viruses Or. R. Galla & Or. G. Todaro
Cancer Research IV—Immunology Or. Paul Levine G
B. E. HOLDER, ROBERT L I M , A. S. M A D D U X , a n d GARY M . HIEFTJE, Lawrence Livermore Laboratory, University of California, Livermore, Calif.
Electrical and Speed Measuring Instruments PLYMOUTH MEETING. PENNSYLVANIA 19462 Pho-c
