APPENDIX, No. X.
INSTRUCTIONS TO THE LIGHT-KEEPERS IN THE SERVICE OF THE COMMISSIONERS OF NORTHERN LIGHTHOUSES.

1. The Lamps shall be kept burning bright and clear every night from sunset to sunrise; and in order that the greatest degree of light may be maintained throughout the night, the Wicks must be trimmed every four hours, or oftener if necessary; and the Keeper who has the first watch shall take care to turn the oil-valves so as to let the oil flow into the Burner a sufficient time before lighting.

2. The Light-keepers shall keep a regular and constant Watch in the Light-room throughout the night. The First Watch shall begin at sunset. The Light-keepers are to take the watches alternately, in such manner that he who has the first watch one night, shall have the second watch next night. The length or duration of the watch shall not, in ordinary cases, exceed four hours; but during the period between the months of October and March, both inclusive, the first watch shall change at eight o’clock. The watches shall at all times be so arranged as to have a shift at midnight.

3. At stations where there is only one Light-room, the daily duty shall be laid out in two departments, and the Light-keepers shall change from one department to the other every Saturday night.

4. First Department.—The Light-keeper who has this department, shall immediately after the morning Watch, polish or otherwise cleanse the Reflectors or Refractors till they are brought into a proper state of brilliancy; he shall also thoroughly cleanse the lamps, and carefully dust the Chandelier. He shall supply the Burners with cotton, the Lamps with oil, and shall have every thing connected with the Apparatus in a state of readiness for lighting in the evening.

5. Second Department.—The Light-keeper who has this department shall cleanse the glass of the Lantern, lamp-glasses, copper and brass work and utensils, the walls, floors, and balcony of the Light-room, and the apparatus and machinery therewith connected; together with the Tower stair, passage, doors, and windows, from the Light-room to the Oil cellar.

6. For the more effectual cleansing of the glass of the Lantern, and management of the Lamps at the time of lighting, both Light-keepers shall be upon watch throughout the first hour of the first watch every night, during the winter period, between the first day of October and last day of March, when they shall jointly do the duty of the Light-room during that hour. These changes to and from the double watch shall be intimated by the Keepers in the Monthly Returns for October and April.

7. At those stations where there are two Light-rooms, each Light-keeper shall perform the entire duty of both departments in that Light-room to which he may be especially appointed. But after the first hour of the first Watch, the Light-keeper who has charge of this watch shall perform the whole duty of trimming and attending the Lights of both Light-rooms till the expiry of his watch; and in like manner, his successor on the watch shall perform the whole duty of both Light-rooms during his watch.

8. The Light-keeper on duty shall on no pretence whatever, during his watch, leave the Light-room and balcony, or the passage leading from one Light-room to another, at stations where there are two Lights. Bells are provided at each Light-room to enable the Light-keeper on duty to summon the absent Light-keeper; and if at any time the Light-keeper on duty shall think the presence or assistance of the Light-keeper not on duty is necessary, he shall call him by ringing his bell, which should be immediately answered by the return signal, and the Keeper so called, should repair to the Light-room without delay. In like manner, when the watches come to be changed, the bell shall be rung to call the Light-keeper next in turn. After which the Light-keeper on duty shall, at his peril, remain on guard till he is relieved by the Light-keeper in person who has the next watch.

9. Should the bell of the Light-keeper whose turn it is to mount guard, happen to be in an unserviceable state, the other house-bell shall be used, and some of the inmates of that house shall call the Light-keeper not on duty, so as by all means to avoid leaving the Light-room without a constant watch during the night.