Specification of Pierre Jacques Ferier
Subtitle: vapour and hot-air baths
Publisher: Great Seal Patent Office
Published: 1857
Place of publication: London
Language: eng
Number of pages: 11
Subjects: Vapor baths; Sulfurous acid; Steam; Aromatherapy
Notes: Cover title.

At head of title: A.D. 1839. No.8179.

"Pierre Jacques Ferier, late of Paris, in the kingdom of France, but now residing at no.5, Paul's Chain, St. Paul's Church Yard, in the city of London, jeweller".

Patent for a steam bath capable of being used for herbal and aromatic vapours and baths of "sulphurous acid gas".