No inspector shall perform any other duties or service on board any vessel, the superintendence of which is committed to him for any person whatever, other than what is required by this Title [R. S., 2517-3129], under the penalty of being disabled from acting any longer as an inspector of the customs; the wages or compensation of such inspector as may proceed from one district to another, shall be defrayed by the master of the vessel committed to his care; every inspector or other officer of the revenue, while performing any duty on board any vessel, not in a port of the United States, discharging her cargo, shall be entitled to receive from the master of such vessel such provisions and accommodations as are usually supplied to passengers, or as the state and condition of such vessel will admit, on receiving therefor fifty cents a day; and any master of any vessel who shall refuse such provisions and reasonable accommodations shall be liable to a penalty of one hundred dollars. (R. S., 2878.) If, by reason of the delivery of the cargo in several districts, more than the term allowed by law shall in the whole be spent therein, the wages or compensation of the inspector who may be employed on board of any vessel, in respect to which such term may be so exceeded, shall, for every day of such excess, be paid by the master or owner; and the inspector shall, previously to the clearance of the vessel, render an exact account to the collector of all such compensation as has been paid, or is due and payable by the master or owner. (R. S., 2879.) The inspector who may be put on board of any vessel shall secure, after sunset in each evening, or previous to his quitting the vessel, the hatches and other communications with the hold of such vessel, or any other part thereof he may judge necessary, with locks or other proper fastenings, which locks or other fastenings shall not be opened, broken, or removed until the morning following, or after the rising of the sun, and in the presence of the inspector by whom the same were affixed, except by special license from the collector of the port, and the naval officer, if any, first obtained. If the locks or other fastenings, or any of them, are broken or removed contrary to this section, or, if any merchandise or packages are clandestinely landed, notice thereof shall be immediately given by the inspector to the collector and naval officer, if any, of the port where the vessel may be; and the master of such vessel shall, for each or every such offense, be liable to a penalty of five hundred dollars. (R. S., 3070.)