A Modification of the Gunning Method for Nitrates.

Abstract

If the ratio were exactly four zinc to three manganese, using the most recent atomic weights, the strength of this solution against manganese mould be one cc. = 0.00382 gram, while, according to Wyrouboff, IoMn = gK,Fe(CN) , and 6Zn = 4K,Fe(CN),, or IoMn= 1 3. j Zn, or r M n = 1.35 Zn, and the strength against manganese would be I cc. = 0.003774 gram.