An engraving depicting Yardley's extractor of
An engraving depicting Yardley's extractor of gelatine for glue from bones: steam admitted under pressure from left, and the whole vessel slowly turned; the gelatine solution was drawn off at P when the vessel was brought to rest. Dated 19th century
Picture No
13911397
Media ID
48518547
Size
5308px x 3951px
(4.0MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























