'In 1800 Humphrey Davy wrote that this gas "appears capable of destroying...pain" & could be used in operations'
laughing gas or nitrous oxide
SCIENTISTS: In 1800 Humphrey Davy wrote that this gas appears capable of destroying...pain & could be used in operations
In 1800 Humphrey Davy wrote that this gas "appears capable of destroying...pain" & could be used in operations
In 1800 Humphrey Davy wrote that this gas "appears capable of destroying...pain" & could be used in operations
SCIENTISTS
laughing gas or nitrous oxide
SCIENTISTS