VOL. XLVIII.] PHILOSOPHICAL TRANSACTIONS. 351 



well suited to promote commerce ; those advantages were greatly improved by 

 him, as well by repairing the roads as making new ones, the care of which 

 works was committed to his son ; some proofs of which yet appear from inscrip- 

 tions on the milliary pillars, erected to mark out the distance of the ways. The 

 legends also on some of their coins, struck in honor of Tetricus, plainly express 

 the happiness which the Gauls enjoyed under his auspicious government; such as 

 Vbertas, LjEtitia, Felicitas pvblica, and the like. 



However, the arts of intriguing and caballing, which had been carried to the 

 greatest height in Gaul by Victorina, gave Tetricus a continual uneasiness, either 

 to detect or suppress them. And therefore on the return of Aurelian from the 

 conquest of Zenobia, whom with her two sons he sent to Rome in great pomp ; 

 when Tetricus could no longer bear with the insolence of his own soldiers, he 

 wrote a letter to him, in which he used this expression : Eripe me his, invicte, 

 malis. And afterwards on the arrival of Aurelian near Chalons in Campania, 

 drawing out his forces, as if he designed an engagement, he surrendered to him 

 both himself and his whole army. By this means Aurelian being then, as the 

 historian expresses it, princeps totius orbis, celebrated a most splendid triumph 

 at Rome; in which not only Zenobia with her two sons, but likewise Tetricus 

 and his son, were exposed to public view among the other captives, to denote the 

 subjection both of the eastern and western empire. 



But Trebellius PoUio informs us, that he afterwards treated Tetricus with the 

 highest honour, often calling him colleague, sometimes fellow soldier, and at other 

 times giving him the title of emperor. His estate also was restored to him, and 

 his house, which had been demolished, was rebuilt on mount Coelius, changed 

 into a palace, and dedicated with solemnities like a temple. Aurelian was him- 

 self invited to this ceremony, and having entered the grand hall, was surprised 

 to see himself represented there, as delivering to Tetricus and his son the sena- 

 tor's robe with other marks of dignity, and receiving from them a civic crown 

 and scepter. And afterwards, Aurelian thinking himself in a condition to avenge 

 the outrages committed by the Persians under Sapor, on the Roman empire, he 

 entered on that expedition ; leaving the government of the greatest part of Italy 

 to the care of Tetricus, with this complaisant expression; Sublimius habendum 

 regere aliquam Italiae partem, quam trans Alpes regnare. 



No historian has settled the time when Tetricus died. But M. de Boze, 

 after relating several circumstances in favour of his opinion, places it about the 

 end of the year 275 of the present era. 



XXI. An Account of a Treatise inlitled, Flora Sibirica, sive Ilisloria Plan- 

 tarum Siberiee, tomus secundus. Extracted and Translated from the Latin of 

 Professor Gmelin, by IV. IVatson, F. R. S. p. 141. 



This 2d vol. of the Flora Sibirica, contains 240 pages 4to, exclusive of the 



