Personal hygiene / by Ada S. Ballin.

  • Ada Sarah Ballin
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Personal hygiene / by Ada S. Ballin. Source: Wellcome Collection.

    36/258
    cind ventilating side corridors and lobbies. Ordinary stair- cases should be built against an external wall, so that there can be a window at every half-pace landing. In inspecting the basement and outer walls due attention must be paid to the points I have noted above.