The influence of calcium, magnesium and potassium nitrates upon the toxicity of certain heavy metals toward fungus spores ..
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb. Thesis (Ph. D.)--John Hopkins university, 1913 Vita From Physiological researches, vol. I, no. 2, serial no. 2, August, 1913 "Botanical contribution from the John Hopkins university no. 31." "Literature cited": p. 91-92
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