May 5, 1916. THE COLLIERY GUARDIAN. 849 Reducing Quantity of Water Used. If it is important to be frugal with the use of water, the following suggestions are offered :—(1) Use a high- temperature heater for furnishing hot water; (2) instal an effective mixer with a marked dial; (3) use small spray heads with fine holes; (4) instal separate cut-off valves at each booth, so that the water may be shut off as soon as a leaky valve is discovered; (5) meter the supply and have the meter read regularly; (6) furnish convenient facilities for washing hands and face; (7) place an alert and capable attendant in charge. With such precautions, the amount of water used per bath should be reduced to about 30 to 40 gals, per man. The quantity of water wasted by a man remaining under the shower unnecessarily long is not large. The number of shower booths is generally such that the men have to wait to get under the spray. They consequently hurry one another, and so prevent the wasting of time under the shower. Besides, they are generally in a hurry to get home, and they do not delay any longer than necessary. The time spent under the shower varies from about five to 10 minutes. Washing Hands and Face. There should be ample facilities for washing hands and face in the wash room. The miner’s hands and face are usually very dirty after a day’s work, and it is inconvenient to wash these under a shower. If they could be washed under a spigot before he takes a shower he could save much time. These spigots are economical for the company, as they reduce the quantity of water used, and by lessening the time under the shower, will decrease the number of showers required. Some companies have installed expensive enamel or porcelain stationary wash bowls. It is difficult to keep these clean. One man may have to wash in a bowl dirtied by another. Other companies have furnished individual portable wash basins to the men (fig. 5). Although these do away with the objection of the common wash bowl, they are inconvenient to use. ■Just as the shower bath is superior to the bath tub, so- flowing water for washing the hands and face is superior to stationary wash bowls. An economical and hygienic arrangement's to run the two supply pipes, one carrying hot water and the other cold, about 4 ft. above the faces may be protected by covering them with vaseline. Five pounds of sulphur should be burned for every 1,000 cu. ft. of space to be fumigated. The sulphur should be spread out ‘in a shallow pan and liberally sprinkled with alcohol before it is ignited. Doors and windows should be closed for 12 hours if possible. Water Closets and Urinals. Water closets and urinals made of nou-absorbent and non-corrosive material should be provided in the wash house. Individual hoppers should be installed, and not the range closets. The hopper selected should have its rear part vertical so that matters will drop immediately into the water without touching the sides of the hopper. Some hoppers on the market are not so constructed, and they should be avoided. Sanitary seats open at the front should be selected. Toilet paper should be furnished. An automatic arrangement whereby the hopper is flushed immediately after use is better than a chain flush or an automatic timed flush. If a trough urinal is installed, partitions about 34 in. apart should be erected. In selecting these toilet fixtures it would pay in the end to buy good material; their very expen- siveness will in a large measure command careful use; cheapness is poor economy; it is easy for improvised fixtures to become fouled and obnoxious. A slop sink should be provided for the attendants’ use and hose connections for flushing out the change house as well as the wash house should not be overlooked when the pipe fitting is being done. Sanitary drinking fountains of the bubbling type should be installed. Plumbing. The amount of plumbing, especially concealed plumb- ing, should be reduced to a minimum. Where a concrete floor is installed this can be easily accomplished. The waste water from all the shower baths should drain in an open gutter to a sump. Likewise the waste water from the washing trough and laundry tubs and slop sink should drain to this same sump with the smallest amount of piping possible. The entire floor should drain towards the sump. The sump should be screened, pJ®ferably with stout copper wire, and should be connected to a sew&r with trap connection. (See fig. 2.) driven washing and ironing machines, and a drying cabinet. This laundry is operated with less expense than if the towels were sent to an outside laundry. Attendant for Wash and Change House. The wash and change house requires an attendant present at all times. Moreover, the wash and change house caretaker should not be a “ pensioner ”; an active and energetic man can earn his wages over and over. The entire building should be scrubbed out regularly once a day. Galvanised iron cans should be at hand to receive old paper, discarded boots, and old clothes. This material should be burned by the attendant every day. Sanitary cuspidors should be on hand. Thermometers should be furnished, and the correct temperature of the buildings should be maintained by means of radiators, windows, and ventilators. The windows should be washed regularly, and the electric light bulbs cleaned and replaced. The plumbing fixtures should be polished and all the valves kept in repair. The walls of the building should be re-painted or re-whitewashed from time to time, and the shower booths, especially if made of metal, touched up frequently to prevent corrosion. Towels may perhaps be rented to the men. Discipline must be maintained. About once a month the build- ing should be thoroughly disinfected by a gas fumigant. These duties will keep a man actively engaged, and they are necessary, as perhaps no building can become so objectionable and offensive as a neglected wash and change house at a mine. QUALIFICATIONS OF CANDIDATES FOR CERTIFICATES OF COMPETENCY. The Board for Mining Examinations have reason to believe that the meaning of rule 3 (a) of the rules made on J uly 30, 1912—so far as it relates to mining appren- tices—is sometimes misunderstood, and they think the following explanation may be found useful. The rule requires that the greater portion of the practical experi- ence (by which is meant more than 24 years in the case of those required to show five years’ practical experience, and more than 1| years in the case of those required to show three years’ practical experience), must have been Fig. 4.—Clothes Racks, Ventilating Hoods, and Lockers. Fig. 5.—Wash Basins and Shower Baths. & floor level, one just above the other, the pipes being tapped about every 2 ft. with small Jin. pipes. Each of the Jin. pipes should have a valve, and each pair of these pipes should join in a common mixing pipe under which the hands and face may be washed. About 12 in. below the outlet of the mixing pipe should be a trough to carry the waste water, and to serve only as a drain (fig. 3). In the absence of the washing receptacle, as the bowl, it is decidedly necessary to have the hot and cold water meet in a mixing pipe. With separate outlets the hot water would scald one if it were used by itself. Neglect to join hot and cold water in a common mixing pipe is a common defect noticed in some otherwise excellent lavatories. There should be about one washing place for every ten lockers, if one locker is provided for each man. The water pressure in the pipes should be reduced. There is no necessity of having the water issue forth with great force; a mere trickle is effective. This saves the water and makes less severe the wear and tear on the valves. Laundry Tubs. Although it may not be advisable to instal a public laundry, a few washing tubs should bo available so that the men can wash their underclothes and towels from time to time. One complaint made is that since the wash and change houses have been used the underclothes are not taken home and washed as formerly. Another criticism made is that some of the miners use the wash bowls for wash tubs. These criticisms are possibly valid to some small extent, and the installation of a few laundry tubs will correct both of them. There should be a regulation insisting that once a month the miners remove their clothes from the change house so that it can be thoroughly fumigated. Burning powdered sulphur is one of the most simple methods of fumigating. Sulphur in the presence of moisture kills disease germs, roaches, fleas, flies, and rats. Sulphur fumes are apt to bleach any clothes that are left, and it may attack exposed metals. Metal sur- Spacious Wash Room Advisable. There should be sufficient floor space in the wash room to permit the men to stand about and dry themselves after the bath before returning into the change room. These two rooms may be of different temperature, and men should be advised to dry the body before going from one to the other. Charge for Use of Wash and Change House. At most mines a charge is levied for the use of the wash and change house; at some the house is furnished without cost to the users. Two different views may be held regarding this practice. The central wash and change house may be considered an additional conveni- ence that should be paid for by the persons benefited, just as the tenant with a bath room in his house must pay more -rent than the tenant without the bath room. In other words, the wash and change house may be con- sidered a detached part of the miners’ house and paid for as rent. On the other hand, the miners’ wash and change house may be considered as part of the plant equip- ment, and its expense charged against the cost of mining coal or ore. In a number of wash and change houses, especially those that have been introduced voluntarily by the mining companies, this latter view is held. Perhaps a compromise position might be taken in regard to this question of fee with equity to all. Often- times the management of the wash and change house can be conducted much more successfully if a small disciplinary charge is made. This charge should merely help keep up the care and maintenance, and should not be such that profit can be made out of the wash and change house. In one of the most modern American wash and change houses the company furnishes soap and towels free of charge to the men. Coarse linen towels, 36 by 17 in., hemmed and embroidered with the company’s initials, are used. The total cost of each towel is 15|c. This installation accommodates about 500 men, and the com- pany has installed a small laundry, equipped with motor- gained either in actual practical work underground (as defined in the rules), or in direct supervision of such work. Supervision implies a certain degree of respon- sible control, and an apprentice who merely reports on the progress of work to the manager would not be con- sidered to have fulfilled this requirement. It should also be noted that the work of mine survey- ing is not allowed under the rule to count in reckoning the “ greater portion ” of the practical experience, but the work of underground surveying will be accepted by the Board as practical experience for the purposes of the remainder of the five or three years, as the case may be. Hull Coal Exports.—The official return of the exports of coal from Hull to foreign countries for the week ended Tuesday, April 25, is as follows:—Amsterdam, 389 tons; Dunkirk, 1,094; Genoa, 3,049; Harlingen, 249; Rouen, 5,251; Rotterdam, 837 ; St. Nazaire, 1,578 ; total, 12,447 tons. Corresponding period April 1915, total 60,800 tons. These figures do not include bunker coal, shipments for the British Admiralty, nor the Allies’ Governments. Foreign Trade Enquiries.—An agent in Venice wishes to obtain agency for special cylinder iron, etc. Name and address obtainable at the Commercial Intelligence Branch of the Board of Trade, 73, Basinghall-street, London, on quoting reference number 148.—A merchant in Spezzia wishes to buy emery wheels and grindstones from United Kingdom manufacturers. Address Secretary, British Chamber of Commerce for Italy, 7, Via Carlo Felice, Genoa (quoting reference number 1061). Staffordshire Iron and Steel Institute.—At the annual meeting of the institute at Dudley on Saturday, Mr. J. E. Fletcher, M.I.Mech.E. (Messrs. Hingleys Limited), was re-elected president. The report stated that the total membership showed a slight decrease, principally due to the remarkable number of deaths during the year. The members learned with regret the decision of Mr. W. H. Carder to resign the secretaryship, which he had held for over 25 years. A special vote of thanks was accorded him, and he was also elected a trustee and member of the council.