LABORATORY MEMORANDUM No.

EO-360-2 Na t io n a l Le a d Co mp a n y 111 BROADWAY NEW YORK 6, N.

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FROM; 366-52SE CHARLES F.

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& Why black is not considered most efficient for walls and ceiling ofX-Ray developing room npHE opinion has been expressed JL that "the-business of a dark room is to be dark"; that "every surface of a dark room should be black and lustreless. " Butshould it?

Is your stucco moisture- If not, put in a hurry call for these two famous partners--the master painter and pure lead paint.

to MIX PURE EEAD PA Soft paste can be thronedtopaintin a few minutes.

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