Paper, 'On the influence of coal dust in colliery explosions, No. IV' by W [William] Galloway

Description

Galloway writes: 'During the warm dry weather prevailing between the 14th and 21st of July last, I made sixty-three further experiments, which for convenience may be separated into the three following well-defined groups. I. Fifteen to ascertain how far the flame of the mixture of fire­damp and air contained in the explosion chamber would extend along the wooden gallery in the absence of every trace of coal-dust. II. Thirty-eight to ascertain how far the flame produced in the same manner and under the same conditions as in the preceding case would extend into a cloud of coal-dust and pure air, created by the action of the air-wave in its passage through the wooden gallery. III. Ten to ascertain the effects due to the explosion of small heaps of blasting powder placed at given points in the wooden gallery, all the other conditions being exactly the same as in the last case.'

Annotations in pencil and ink throughout. Includes three pages of figures relating to colliery explosions and flames.

Subject: Chemistry / Physics

Received 29 December 1881. Read 23 March 1882. Communicated by Robert [Henry] Scott.

A version of this paper was published in volume 33 of the Proceedings of the Royal Society as 'On the influence of coal-dust in colliery explosions. No. IV'.

Reference number

PP/1/38

Earliest possible date

1881

Physical description

Ink and graphite pencil on paper

Page extent

18 pages

Format

Manuscript
Drawing