L. W. Brownell

“ For many years the most universally-used developer has been one in which the principal ingredient is pyrogallic acid, and this, despite the fact of the large number of developing agents that have of late years been placed upon the market, is still, in the hands of one who knows how to use it properly, the best all-around developer. ”

“ Use one part of this solution to from two to four of water, according to whether you wish for a weak or a strong negative.
Any of the foregoing formulas can be used for tank development, but must be diluted with from twenty to thirty times the amount of water ordinarily used. For those who are sure of the exposures they have given their negatives, I should always advise this method of development as giving the most uniform and even results in the least possible time, that is, of course, when there are a number of negatives to be developed. ”

“ Start development with the weaker solution and watch carefully how the image appears. If it comes up quickly and with a flat, hazy appearance, then the plate has been over-exposed, and the weak developer must be poured off and the stronger one used, with the addition of fifteen or twenty drops of the bromide solution. Development under these conditions should be carried beyond the point where it would ordinarily be stopped in order to bring out all the details, and the negative reduced afterward if too dense. ”