Fires and explosions.
Goerig
M
M
D000114:Acetylene / Q000266:history; D000776:Anesthesiology / Q000266:history*; D004986:Ether / Q000266:history; D005107:Explosions / Q000266:history*; D005390:Fires / Q000266:history*; D005858:Germany; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century
D004986:Ether; D000114:Acetylene