=Baths.=--Provision of bath accommodation is required under the special rules for white-lead factories and the regulations for electric accumulators. In several factories, however, baths are provided for the use of the workers. They naturally make for improvement in general health, but we cannot regard provision of them, any more than cloakrooms and mess-rooms, as likely to influence materially incidence of lead poisoning in a factory. The three requisites of (1) convenience and quickness, (2) comfort, and (3) regular use, can best be secured by the use of shower baths in place of slipper baths. The advantage they have are--(1) Initial cost of installation is less; (2) economy in space; (3) economy in water; (4) economy in time required for bathing; (5) no worker comes into contact with water used by another; (6) cleansing must be from the head downwards. Danger of scalding can be absolutely excluded by use of valve levers, so placed in relation to one another that steam cannot be turned on until the cold-water valve has been opened, and the heater can be so arranged that the water is not raised above a definite temperature. =Separation of Processes.=--Lead processes should, as far as possible, be carried on in such a way that there is aerial disconnection of one process from another. Separate workrooms, although desirable unless very small, may not always be possible, but by exhaust ventilation processes may be arranged so that dust is not a source of danger to persons working elsewhere. Instances could be given where, in paint and colour works, persons employed in the grinding of earth colours, in which no lead entered, succumbed to attacks of plumbism from contiguity of the plant with that for grinding lead colours. Threading up of castor runners on a wire previous to dipping used to be done, prior to 1901, in the dipping-house itself, with the result that some severe cases of poisoning occurred. By the rules of 1901 the process was required to be done in a place separate from any place where dipping (or other scheduled process) was carried on, and very few cases have occurred since. And if exhaust ventilation is relied on, Duckering’s experiments (p. 206) show the attention to detail necessary to prevent air charged with lead dust being drawn to the spot by the fan. The need for separation of processes becomes less in proportion as the cubic space of the room increases, and dust and fumes are locally removed.