In 1863-4, the RNLI tasked leading medical and science experts to identify how best to deal with casualties who had been pulled from the water. These instructions subsequently became known as the Restoration of the apparently drowned.
Coxswains were instructed to be familiar with the procedure and whilst a parallel may be drawn with the casualty care check cards which are issued to modern day lifeboat crews, it is fair to say that the approach to resuscitation has changed somewhat.
The instructions received a wide circulation with Lewis sending them to local councils so that they could be displayed in public places. And they were reportedly in use with the coastguard, Royal Navy and British Army around the world.