9. _Lists to be kept of private boats and boats for hire._--In the General Register in the seventh section of this Act mentioned, separate lists shall be kept of boats and vessels used for pleasure navigation by private owners, and of boats and vessels let for hire. The former class of boats or vessels shall be distinguished, according to regulations to be made from time to time by the Conservators, by a registered number, crest, badge, or mark, and the latter class by a registered number; and the provisions of section eleven and section thirteen of the Thames Act, 1883, as to displaying or concealing the same or number of any steam-launch shall be deemed in all cases to apply to the said registered numbers, crests, badge, and marks respectively, with such modifications as the Conservators may by such regulations from time to time direct. 10. _Renewal of yearly registration._--It shall be lawful for the Conservators by by-law to enact as to any or all of the classes of boats or vessels by them from time to time required to be licensed or registered as aforesaid, that such licence or registration shall be renewed at any interval not being less than one year. 11. _Fee for registration._--It shall be lawful for the Conservators to charge, in respect of boats or vessels registered under this Act, sums not exceeding the sums following; that is to say, for each registration of a pleasure-boat not being a house-boat, a sum not exceeding two shillings and sixpence, and for each registration of a house-boat a sum not exceeding five pounds; and if such house-boat shall be more than thirty feet in length, a further sum not exceeding twenty shillings in respect of every complete five feet and the fraction of an incomplete five feet by which such house boat shall exceed thirty feet in length. Provided always that nothing in this Act shall require a boat or vessel not being a house-boat to be registered oftener than once in three years. 12. _Present registration or licence not to be affected._--Nothing in this Act shall require any vessel which may under any Act be required to be registered or licensed by the master, wardens, and commonalty of watermen and lightermen of the River Thames to be registered or licensed under this Act. 13. _First registration._--For the purposes of the last preceding section a fresh registration or licence of any boat or vessel in a class other than that in which the same was first registered or licensed shall be deemed a first registration or licence.