2. The freighter is entitled to the enjoyment of the vessel according to contract, and the vessel hired is the only one that he is bound to take there can, therefore, be no substitution without his consent. When the vessel has been chartered only in part, the freighter is only entitled to the space he has contracted for; and in case of his occupying more room or putting on board a greater weight, he must pay freight on the principles mentioned under the article of freight.
3. The freighter is required to use the vessel agreeably to the provisions of the charter party, or, in the absence of any such provisions, according to the usages of trade he cannot load the vessel with merchandise which would render it liable to condemnation for violating the laws of a foreign state. 3 John. R. 105. The freighter is also required to return the vessel as soon as the time for which he chartered her has expired, and to pay the freight.