NO A A PROFESSIONAL PAPER II 



B 



CHAPTER 9, PART 1, PLATE I. — Nomarski differential interference photomicrographs (A, B) of Ceralium stained with acetocarmine. N is cell 

 nucleus; C, chloroplast; and E, nuclear inclusions of extracellular origin. Original magnification of A and B is 250 x . (Courtesy of W. Mann and 

 P Falkowski, Brookhaven National Laboratory.) 



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