II. _In the Year_ 1711, He published NEW DISCOVERIES _relating to the Cure of_ CANCERS. _Wherein the painful Methods of cutting them off, and consuming them by Caustics are rejected, and that of dissolving the Cancerous Substance_ is recommended; _with various Instances of his Success in_ this Practice _on Persons reputed incurable. Also a Solution of Four curious Problems concerning_ CANCERS, viz. I. Whether the Cancerous Juice _is corrosive or not_. II. _Whether_ Cancers _are contagious or not_. III. _Whether if the extirpating a_ Cancerous Breast _happens to be successful, it ought to be looked upon as a Consequence of performing the Operation better than our Predecessors_. IV. _Whether a_ Salivation _will Cure a_ Cancer. _This Treatise came to a_ Second Edition _the following Year_ 1712: _To which, besides some Corrections_, Mr BECKETT _added_ TWO _other Problems with their Solutions_, viz. V. Whether _Cancers_ are curable by _Caustics_. VI. Whether _Cancers_ are curable by _Internal Medicines_. In this Piece all that he promised relating to GENDRON is inserted. And to the present _Third Edition_ He subjoined, by way of _Postscript_, a very valuable _Receipt_ for the Cure of _Cancers_, which he informs us was communicated to him by his late eminent Brother Surgeon Mr _Dobyns_ of _Snow-Hill_. He had it from Mr _Pain_ a Gentleman of _Northamptonshire_, in whose Family it had been, in the highest Esteem, for above 200 Years. Mr _Beckett_ likewise adds, that he transcribed it from the Original _Manuscript_. At the End of the _Second Edition_ of his _Treatise_ on _Cancers_, Mr _Beckett_ gave an _Advertisement_ that “He was then preparing for the Press, _Chirurgical Collections_, which would consist of His own _Observation_ of _uncommon Cases_, also, the most curious things relating to Surgery, taken from the Performances of the _German Eruditi_, in their _Acta Lipsiæ_, the _Miscellanea Curiosa_, _Philosophical Transactions_. _Memoirs for the Curious_, _Voyages_, _Travels_, _Natural Histories of Counties_, and many other things that would afford useful Observations. In this Collection was to be a great number of Figures of Cases, Instruments, Machines, _&c_. all curiously engraven on Copper Plates. This Undertaking was wholly designed for the Improvement of the Art of Surgery; and the _Introduction_ to it was to give an Account of our famous _English_ Writers in _Physic_ and _Surgery_, for many hundred Years past.”