A Description in non-technical Language of the diverse and wonderful ways in which chemical forces are at work and of their manifold application in modern life.
Science at a Colliery Disaster
The illustration shows the rescue party at the Hamstead Colliery disaster preparing to
descend the shaft.. Each member of the party is equipped with an artificial respiration
apparatus, so that in effect he carries his own atmosphere with him and avoids breathing
poisonous gases in the pit. B