After thirty years' sojourn in this country, Rouquet transferred himself to Paris. At what precise date he did this is not stated, but by a letter to Hogarth from the French capital, printed by John Ireland, the original of which is in the British Museum, he was there, and had been there several months, in March 1753. The letter gives a highly favourable account of its writer's fortunes. Business is "coming in very smartly," he says. He has been excellently received, and is "perpetualy imploy'd." There is far more encouragement for modern enterprise in Paris than there is in London; and some of his utterances must have rejoiced the soul of his correspondent. As this, for instance--"The humbug _virtu_ is much more out of fashon here than in England, free thinking upon that & other topicks is more common here than amongst you if possible, old pictures & old stories fare's alike, a dark picture is become a damn'd picture." On this account, he inquires anxiously as to the publication of his friend's forthcoming _Analysis_; he has been raising expectations about it, and he wishes to be the first to introduce it into France. From other sources we learn that (perhaps owing to his relations with Belle-Isle, who had been released in 1745) he had been taken up by Marigny, and also by Cochin, then keeper of the King's Drawings, and soon to be Secretary to the Academy, of which Rouquet himself, by express order of Lewis the Fifteenth, was made a member. Finally, as in the case of Cochin, apartments were assigned to him in the Louvre. Whether he ever returned to this country is doubtful; but, as we have seen, the _Etat des Arts_ was printed at Paris in 1755. That it was suggested--or "commanded"--by Mme. de Pompadour's connoisseur brother, to whom it was inscribed, is a not unreasonable supposition.