6A
M A L L I N
ANALYTICAL
CHEMISTRY
whatever you do —use Mallinckrodt·*·
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ί x XS& o^est
1 0 οΛ*^
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o« v 0 * β 0^'
T - Ô . V C^
-A
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K·*'
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ot
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Szsl.
But whichever directions you choose, use Mallinckrodt Analytical Reagents. They are consistently the fine reagents A.C.S. specifications require. When your reagents bear the Mallinckrodt label you are sure of uniform dependable purity, and exceptional performance in every test.
C
ALWAYS
SPECIFY MALLINCKRODT
REAGENTS IN ORIGINAL
82 'Sfeau cf SPelvtce lo ^Aetnicai' IJI'IUNI'IIJIU Mallinckrodt
MALLINCKRODT
ÏINCE 1B6T
MALLINCKRODT STREET, ST. LOUIS 7, MO CHICAGO
·
CINCINNATI
.
CLEVELAND UNIFORM
.
LOS ANGELES
PACKAGES
tykeu
CHEMICAL
WORKS
72 GOLD STREET, NEW YORK 8, Ν. Υ.
MONTREAL · PHILADELPHIA DEPENDABLE PURITY
·
SAN FRANCISCO
