If, at the end of the voyage, the crew are discharged and not retained to unload, their wages are due immediately;[262] but they cannot sue in admiralty until ten days after the day of discharge.[263] If they are retained to unload, then the owner is allowed ten days from the time the cargo is fully discharged. If, however, the vessel is about to proceed to sea before the ten days will elapse, or before the cargo will be unloaded, the seaman may attach the vessel immediately.[264] If the owner retains his crew while the cargo is unloading, he must unload it within a reasonable time. Fifteen working days has frequently been held a reasonable time for unloading, and the ten days have been allowed to run from that time.[265] [262] Ware, 458. Dunl. Ad. Pr. 99. 1 Pet. Ad 165, 210. [263] Act 1790, ch. 56, §6. [264] Do. [265] 1 Pet. Ad. 165. Abb. Shipp. 456, n. The longest time allowed by law for unloading vessels is twenty days, if over 300 tons, and ten days, if under that tonnage. Probably seamen would not be held bound to the vessel for a longer time than is thus allowed by law for unloading. INTEREST ON WAGES.--In suits for seamen's wages, interest is allowed from the time of the demand; and if no demand is proved, then from the time of the commencement of the suit.[266] [266] 2 Gall. 45. SALVAGE.--If a vessel is picked up at sea abandoned, or in distress, and any of the crew of the vessel which falls in with her go on board, and are the means of saving her, or of bringing her into port, they are entitled to salvage.[267] In this case, all the crew who are ready and willing to engage in the service are entitled to a share of the reward, although they may not have gone on board the wreck.[268] The reason is, that where all are ready to go, and a selection is made, there would be injustice and favoritism in allowing any one the privilege more than another. Besides, those who remain have an extra duty to perform in consequence of the others having gone on board the wreck.[269] [267] Ware, 477. 1 Pet. Ad. 306. [268] Ware, 477. 2 Pet. Ad. 281. [269] 2 Dodson, 132. Crews are not ordinarily entitled to salvage for services performed on board their own vessel, whatever may have been their perils or hardships, or the gallantry of their services in saving ship and cargo;[270] for some degree of extra exertion to meet perils and accidents, is within the scope of a seaman's duty. In case of shipwreck, however, where, by the general law, wages are forfeited, the court will allow salvage, considering it as in the nature of wages due. In one instance salvage was refused to a part of a crew who rescued the ship from the rest who had mutinied; for this was held to be no more than their duty.[271] [270] 10 Pet. R. 108. 1 Hagg. 227. [271] 2 Dods. 14.