During his two years in London, working successively in the printing houses of Samuel Palmer and James Watts, he mingled with many of the leaders of the day. Probably because he had, while yet in America, read (in the transactions of the Royal Society) of the virtuosi's interest in asbestos, he wrote to Sir Hans Sloane, offering to show him purses made of that novel stuff.[i-418] And we know that Sir Hans Sloane received Franklin in his home at Bloomsbury Square. Before he met other notables he published (what he called later an "erratum") _A Dissertation on Liberty and Necessity, Pleasure and Pain_ (1725).[i-419] Franklin himself said this work was the result of his setting up Wollaston's _The Religion of Nature Delineated_[i-420] at Palmer's and his not agreeing with the author's "reasonings." Coming to Wollaston's work (with Franklin's _Dissertation_ and _Articles of Belief_ in mind) we can, however, see much that Franklin agreed with, general principles which do little more than reflect the current patterns of thought. Like Franklin, Wollaston saw Reason as "the great law of our nature."[i-421] With Locke he denied innate ideas.[i-422] That part of _The Religion of Nature Delineated_ in which he searched with laborious syllogistic reasoning for the Ultimate Cause (which could not produce itself) may have been boring to the less agile mind of the young printer. Wollaston, however, apologized for his syllogistic gymnastics offered in proof of Deity since "much more may those greater motions we see in the world, and the phenomena attending them" afford arguments for such a proof: I mean the motions of the planets and the heavenly bodies. For _these_ must be put into motion, either by one Common mighty Mover, acting upon them immediately, or by causes and laws of His Appointment; or by their respective movers, who, for reasons to which you can by this time be no stranger, must depend upon some _Superior_, that furnished them with the power of doing this.[i-423]