NYLAB
Klett
• ••
Photometers KlettStutuneMatt Photoelectric Qlaii Cell Qoicumeiet No. 900-3
"Ike. Klett
QUiVUmete*.
The widest selection of constant temperature cabinets available —advanced design to offer you these out standing features: No. 2070
ELECTRONIC CONTROL instantaneous response · trouble-free operation TEMPERATURE RANGES TO 325 C a new standard for laboratory ovens PROVEN TEMPERATURE UNIFORMITY Freas does not dodge the issue—detailed temperature uniformity figures are published—backed up by us and by our manufacturer Freas can meet all your constant temperature needs whether ovens · sterilizers · vacuum work · incubators • special purpose—all the facts and figures in a brand new catalog. ASK FOB CATALOG 302-AVAILABLE NOW
New York Laboratory Supply Co., Inc. 7 6 - 7 8 VA RICK
STREET
NEW
Circle No. 66 on Readers' Service Card 94 A
·
ANALYTICAL CHEMISTRY
YCRK
13.
N Y
Designed for the rapid and accurate determina tion of thiamin, riboflavin, and other substances which fluoresce in solution. The sensitivity and stability are such that it has been found particularly useful in determining very small amounts of these substances.
.KLETT SCIENTIFIC PRODUCTS^ PHOTOELECTRIC COLORIMETERS · BIO-COLORIMETERS GLASS ABSORPTION CELLS · COLORIMETER NEPHELOMETERS · GLASS STANDARDS · KLETT REAGENTS
Klett
Manufacturing Co.
179 EAST 87TH STREET, NEW YORK, Ν. Υ. Circle No. 60 on Readers' Service Card