Source: Carlill v Carbolic Smoke Ball Company , judgement of Bowen LJ
A further argument for the defendants was that this was a nudum pactum - that there was no consideration for the promise — that taking the influenza was only a condition, and that the using the smoke ball was only a condition, and that there was no consideration at all; in fact, that there was no request, express or implied, to use the smoke ball. Now, I will not enter into an elaborate discussion upon the law as to requests in this kind of contracts. I will simply refer to Victors v Davies and Serjeant Manning's note to Fisher v Pyne, which everybody ought to read who wishes to embark in this controversy. The short answer, to abstain from academical discussion, is, it seems to me, that there is here a request to use involved in the offer.
'this controversy' isn't physical, so why in? Should the preposition be on/upon instead?