Improved hydrostatic beds, or, Invalid mattresses and cushions for placing on an ordinary bedstead.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

Improved hydrostatic beds, or, Invalid mattresses and cushions for placing on an ordinary bedstead. Public Domain Mark. Source: Wellcome Collection.

Provider

This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.