Original publication date: SPRING 1959
Original publisher:
Publication status: Out of print
Original publisher:
Publication status: Out of print
A Qualitative Chromatogeaphic Method
For the Determination of
Biological Factors………EhrenfriedE. Pfeiffer………………………..2
(A Four-Page Color Supplement)
Professionals Debate Pesticide Effects .. Fred Heckel ………………15
The Annual B.D. Conference (Program Plans)…………………………21
Book Reviews…………………………………………………………………..22
From the Secretary’s Desk …………………………………………………26