[1]

A paper read before the Gas Institute, Manchester, June, 1885.

[2]

See Journal, vol. xxxv, pp. 91, 133.

[3]

Ibid., vol. xliii., pp. 703, 744.

[4]

See Journal, vol. xxxix., p. 648.

[5]

Ibid., vol. xl., p. 955.