When I needed a commonly available poison that would put my Snow White into a death-like state, the internet came to my rescue, telling me that even small doses of hemlock caused paralysis. Even today, the treatment for hemlock poisoning is artificial support for breathing and heart until the paralysis wears off.
So then I had to find out about what we in my youth called mouth-to-mouth resuscitation, and (as it turned out) the Georgian era called expired-air ventilation (EAV). Medical history reports the use in 1732, when a surgeon at Alloa, Scotland, successfully used mouth-to-mouth to resuscitate a miner who was, to all appearances, dead.
There are other intriguing references going back over millennia that might have been mouth-to-mouth, but certainly, the practice became better known in the 18th century after the Alloa surgeon wrote his account.
The first humane society to promote artificial respiration was established in Amsterdam in the middle of the century, and was followed by others, first promoting EAV, and later the use of inflating bellows. Mouth-to-mouth, however, continued to be something any bystander could do.
So there it was. All I had to do was make apple pies my Snow White character’s favourite treat, and Bob’s your uncle [1].
Snowy ate the hemlock-laced apple pie and dropped down apparently dead. His Princess Charming gave him the kiss of life. It’s a classic!