Tempanius leads back his victorious troops from the Volscian war;[411] but the only instance in which, as far as I remember, any special description of ambulance is mentioned, occurs in Hirtius’ _Commentaries_, where he tells us that, after the battle fought near Ruspina, Labienus ordered his wounded to be carried to Adrumentum, bound in waggons (saucios suos jubet in plostris deligatos Adrumentum deportari).[412] The passage should more probably read “plostris decubitos.” The remarks which I have hitherto made refer only to the medical staff and organisation of the Roman army. If, however, as the preceding facts tend to show, the Roman troops were furnished with a medical staff, there is, _a priori_, every probability that the Roman fleet was similarly provided. The contingencies, however, of a naval, as compared with a military life, render the preservation of such monumental proofs as we have already adduced in relation to the existence of army medical officers much less likely in relation to the existence of medical officers in the fleet. Indeed I am only aware of the discovery of one ancient tablet referring to the naval medical service. In his late splendid work on the Latin inscriptions found in the kingdom of Naples, Mommsen has given a careful copy of the tablet in question.[413] The inscription upon it was first, I believe, published by Marini.[414] The tablet itself, which is now placed in the antiquarian collection at Dresden, was originally discovered in the Elysian fields, near Baiæ; and consequently in the vicinity of the famous _Pontus Julius_, and the station of the imperial Misenian fleet. The inscription on the stone bears that M. SATRIUS LONGINUS, physician to the three-banked ship or trirem, the CUPID,[415] and those or the heirs of those freed by Julia Venerias, his wife, erected the tablet to the manes of this deserving lady. D. M IVLIÆ VENERIÆ. M. SATRIUS LONGIN MEDIC. DVPL. III. CVPID ET. IVLIA VENERIA LIBER HER. BEN. MER FECER In the preceding inscription LONGINUS is designated _Medicus Duplicarius_; the term duplicarius in this as other inscriptions signifying that, by the length or superiority of his service, he was entitled to double pay and rewards. The “duplex stupendium” and “duplex frumentum” is repeatedly alluded to by Varro, Livy, Virgil, and other classical authors, as a military reward accorded to the more deserving soldiers and officers of the army; and the corresponding adjective “_duplicarius_” not unfrequently occurs in old Roman inscriptions.