Tp *crf - aa liMi j#4> N1 L* mmf..m J*J* M 9-12-1938 I# *i(*(ir Li >j i pt K IW 111 B-f 1W iVft, lifT?

VENTURA I COUNTY (CALIFORNIA DIRE ORY 1939 Containing an Alphabetical Directory of Business Concerns and Pri vate Citizens, a Directory of Householders,- Occupants of Office Buildings and Other Business Places, Including a Street and Avenue Guide, a Numerical Telephone Directory, and Much ^Information of a Miscellaneous Character, ^ also t^he YELLOW PAGES With a Special ADVERTISING,SECTION and a Complete CLASSIFIED LIST ,FOR CONTENTS SEE INTRODUCTION AND GENERAL INDEX i SOLD ON SUBSCRIPTION R.

VENTURA I COUNTY (CALIFORNIA DIRE ORY 1939 Containing an Alphabetical Directory of Business Concerns and Pri vate Citizens, a Directory of Householders,- Occupants of Office Buildings and Other Business Places, Including a Street and Avenue Guide, a Numerical Telephone Directory, and Much ^Information of a Miscellaneous Character, ^ also t^he YELLOW PAGES With a Special ADVERTISING,SECTION and a Complete CLASSIFIED LIST ,FOR CONTENTS SEE INTRODUCTION AND GENERAL INDEX i SOLD ON SUBSCRIPTION R.

POLK'S SAN JOSE ....................

5a-flia Apr*^, 1933 Lead,' poi*eitla& |30.00 AoaJtfUwi* 'a * , f - , i '.

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c DEPARTMENT OF LABOR AND INDUSTRY HARRISBURS November J, 1932.

EORAM5: H.O N D O N.

CHURCHILL 5900 Everything for Mine and Industrial Safety CABLE ADDRESS ' MINSAF" PITTSBURGH BRADDOCK,THOMAS AND MEADE STREETS Mr.

June 27, 1939 Dr.

*ry ESTABLISHED 1302 E.

1 r0 Polyclilorobiphenyls (PCB's) and their Interference with Pesticide Residue Analysis by Lincoln M.

^VofyAIorinateti Biphenyl: Xateracfioa wlflt4 * l>ack Btpafids VkaT ' Abstract Ten-day-old mallard ducklings fed a polychlorinated biphenyl at concentrations of 25, SO, and 100 parts per mBtion for 10 days suffered no apparent clinical Intoxication.

Monsanto Chemical, Comeany ...... ............

June 12, 1930 R.K.