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 to make it come fair, or who delivers any such boiler for use, knowing it to be imperfect in its flues, flanges, riveting, bracing, or in other of its parts, shall be fined two hundred (200) dollars, one-half for the use of the informer.

§ 8. SPECIAL INSPECTIONS.] In addition to the annual inspection, it shall be the duty of each inspector to examine at any time, when in his opinion such examination shall become necessary, all such boilers within his district as shall become unsafe from any cause and to notify the owners or person using such boilers of any defect, and what repairs are necessary in order to render them safe; and it shall be the duty of the person operating or owning any such boiler to cease to use the same until such repairs are made; and in case of failure to comply with the requirements of said inspector, the person operating or owning any such boiler shall be liable to a fine not exceeding one hundred (100) dollars, and liable for any damage to person or property resulting therefrom.

§ 9. FUSIBLE PLUGS.] Every steam boiler shall be provided with a fusible plug of good banca tin, inserted in the flues, crown-sheet or other part of the boiler most exposed to the heat of the furnace when the water falls below the prescribed limits.

§ 10. INSPECTORS TO HAVE FREE ACCESS.] It shall be the duty of owners or managers of steam boilers, mentioned in this act, to allow said inspector free access to the same, and it is hereby made the duty of engineer operating the same to assist the inspector in his examination, and to point out any defect they may know in the boiler or machinery in their charge.

§ 11. LICENSE, WHEN REVOKABLE-WHO QUALIFIED TO OPERATE STEAM BOILERS.] No person shall be intrusted with the operating of any steam boiler or steam machinery who has not been examined by an inspector and found competent to perform the duties of an engineer and receive from such inspector a written or printed license to so act. Engineers shall be divided into three classes, viz: chief engineer, assistant engineer and special engineer. No license shall be granted to any person to perform the duties of chief engineer whose knowledge of steam machinery and experience as an engineer is not such as to justify the belief that he is competent to take charge of all classes of boilers and machinery. No license shall be granted to any person to act as assistant engineer unless his knowledge of steam machinery and habits of life are such as to warrant the belief that he is competent to manage safely and without danger to life, ordinary steam machinery. Special engineers may be licensed to operate steam thresher engines and engines of kindred class, when found on examination to be sufficiently acquainted with the duties of an engineer to warrant the belief that he can safely be entrusted to perform such duty. Whenever complaint is made against an engineer holding a license from a State Inspector that he has, through negligence, want of skill or inattention to duty, permitted his boilers to burn