more common problems associated with pail closets by lining the pail with an absorbent material. The Rochdale Corporation experimented with Goux's design for several months but settled instead on a system which used smaller pails. Goux's system did, however, find a home in Halifax, where it was used in more than 3,000 closets after 1870. The wooden pails used in Halifax were oval in cross-section (about 24 by 19 inches) and 16 inches deep. Each was lined at the sides and bottom with a mixture of refuse, such as straw, grass, street sweepings, wool, hair, and even seaweed. This lining, which was formed by a special mould and to which sulphate of lime was added, was designed to help remove the smell of urine, slow putrefaction and keep the excreta dry. Pails were collected between 7 am and 5:30 pm. Members of the public occasionally complained about the smell, which usually occurred when a pail was left to overflow, such as in winter 1875 when severe weather conditions prevented the horse-pulled collection wagons from reaching the closets. Earth closet system In some areas, an earth closet was used. Invented by Henry Moule, this system used a metal container as with the pail system, but small amounts of a mixture of peat, dry earth and ashes were used to cover the excreta, removing any smells almost immediately. These deodorisers were often applied with a small scoop or shovel, but more elaborate systems existed where the powder was kept in a box near the seat, with a small handle to control the amount deposited on the excrement. Charcoal—which could be obtained cheaply from street-sweepings—and sawdust were also used to good effect. The process was more expensive than the simpler pail system. The mixture of earth and excreta could often be dried and re-used, but the fear of infections meant that it was sometimes used instead as a garden fertiliser. Earth closets were usually housed in a separate building from the main structure and were well ventilated. As with the pail system, earth closet containers were designed to be emptied frequently. The earth closet was popular and was used in private houses, military camps, hospitals and extensively in India. It remained in use well into the 1930s. Disadvantages From a sanitary perspective, the pail system of waste removal was imperfect. Excreta and other general waste were often left above ground for hours, sometimes