Some authors have practised singular impositions on the public. Varillas, the French historian, enjoyed for some time a great reputation in his own country for his historical compositions; but when they became more known, the scholars of other countries destroyed the reputation which he had unjustly acquired. His continual professions of sincerity prejudiced many in his favour, and made him pass for a writer who had penetrated into the inmost recesses of the cabinet; but the public were at length undeceived, and were convinced that the historical anecdotes which Varillas put off for authentic facts had no foundation, being wholly his own inventions--though he endeavoured to make them pass for realities by affected citations of titles, instructions, letters, memoirs, and relations, all of them imaginary! He had read almost everything historical, printed and manuscript; but his fertile political imagination gave his conjectures as facts, while he quoted at random his pretended authorities. Burnet's book against Varillas is a curious little volume.[43] Gemelli Carreri, a Neapolitan gentleman, for many years never quitted his chamber; confined by a tedious indisposition, he amused himself with writing a _Voyage round the World_; giving characters of men, and descriptions of countries, as if he had really visited them: and his volumes are still very interesting. I preserve this anecdote as it has long come down to us; but Carreri, it has been recently ascertained, met the fate of Bruce--for he had visited the places he has described; Humboldt and Clavigero have confirmed his local knowledge of Mexico and of China, and found his book useful and veracious. Du Halde, who has written so voluminous an account of China, compiled it from the Memoirs of the Missionaries, and never travelled ten leagues from Paris in his life,--though he appears, by his writings, to be familiar with Chinese scenery. Damberger's Travels some years ago made a great sensation--and the public were duped; they proved to be the ideal voyages of a member of the German Grub-street, about his own garret. Too many of our "Travels" have been manufactured to fill a certain size; and some which bear names of great authority were not written by the professed authors. There is an excellent observation of an anonymous author:--"_Writers_ who never visited foreign countries, and _travellers_ who have run through immense regions with fleeting pace, have given us long accounts of various countries and people; evidently collected from the idle reports and absurd traditions of the ignorant vulgar, from whom only they could have received those relations which we see accumulated with such undiscerning credulity." Some authors have practised the singular imposition of announcing a variety of titles of works preparing for the press, but of which nothing but the titles were ever written.