This is what Cogghall/Morse list in the bibliography of their book  'Beeswax'.

Townsend, G. F. Absorption of colour by honey solutions from  brood comb, Bee 
World  55:26-27.
1974.


Looking at the original article, I see that, at paragraph 1 'Honey  extracted 
from dark combs is usually darker than that extracted from light combs  in 
the same super (honey chamber).
 
At paragraph 3 Mr Townsend describes an experiment in which honeys of  
various moisture content were mixed with dark or light comb and stored under  
various conditions that he describes. The light comb was one year old drawn in  
supers; the dark had been used fro brood rearing for a number or years.
A heavy precipitation developed in the samples containing 50 & 75 %  water in 
contact with dark comb.
 
The concluding sentence reads 'Sufficient evidence was obtained to indicate  
that the turbidity found in some honeys may be due to the addition of 
suspended  material in the fresh nectar from dark combs when stored in them.'
 
Chris

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