Editing Contact process (section)

== References ==

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* ''The Repertory of Patent Inventions'', no. 72 (April 1831), [https://books.google.com/books?id=EAcLAQAAIAAJ&pg=PA248 page 248].
* (Anon.) (1832) "English patents:  Specification of the patent granted to Peregrine Phillips, Jr. of Bristol, in the county of Somersetshire, Vinegar Maker, for an improvement in manufacturing Sulphuric Acid.  Dated March 21, 1831." ''Journal of the Franklin Institute'', new series, vol. 9, [https://books.google.com/books?id=RL5IAAAAMAAJ&pg=PA180 pages 180-182.]
* Ernest Cook (March 20, 1926) "Peregrine Phillips, the inventor of the contact process for sulphuric acid," ''Nature'', '''117''' (2942) : 419–421.
* [https://books.google.com/books?id=SJIZAQAAIAAJ&pg=PA975 Lunge, ''Theoretical and Practical Treatise on the Manufacture of Sulphuric Acid and Alkali, with the Collateral Branches'', 3rd ed., vol. 1, part 2 (London, England:  Gurney and Jackson, 1903),  page 975]
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