In 1670 Thomson published a treatise against blood-letting under the title of "Haimatiasis, or the true Way of preserving the Bloud", which plunged him into a new controversy with Henry Stubbe (1631–1676), who replied in "The Lord Bacon's Relation of the Sweating-Sickness examined, in a Reply to George Thomson, Pretender to Physick and Chymistry, together with a Defence of Phlebotomy" (London, 1671). Thomson rejoined in "A check given to the insolent garrulity of Henry Stubbe etc." (London, 1671). Letters were exchanged and published by Thomson in the following year. In 1673, he published "Epilogismi Chymici Observationes necnon Remedia Hermetica Longa in Arte Hiatrica exercitatione constabilita", and, in 1675, "The direct method of curing chymically etc".Translated into Latin by Gottfried Hennicken, and published at Frankfort-on-Maine in 1686 with a preface by Thomson dated 1684.
