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burner, should never be less than that yielded by twelve sperm
candles of a certain pattern. I have moreover, as a proof of
its comparative purity, always failed to detect the presence of
either ammonia or sulphuretted hydroged when I have submitted
it to the legal tests.
I have continued also to analyze monthly the water of the
Lambeth, Southwark and Vauxhall, and Kent Companies,
(Table XI.) and have still (as I have from time to time informed
you) found the quality satisfactory.
I beg, Gentlemen, finally again to thank you for the continued
kindness which I receive at your hands; and to
subscribe myself respectfully,
Your obedient Servant.
J. S. BRISTOWE.