Fig. 1.—Colinitb Antigkisouteuse.

6 cartridges inj3 rows. Full section of gallery.

Flame Phenomena Observed in Firing Permitted Explosives.

RESULTS OF EXPERIMENTS

CARRIED OUT IN THE BELGIAN GOVERNMENT TESTING STATION.

(See page 837).

Fig. 2.—Explosive A.

600 grammes. 6 cartridges in 3 rows. Full section of gallery.
Atmosphere with 9’5 per cent, of oxygen.

ssaa,..

Fig. 4.—Explosive B (Sample No. 2).

400 grammes. 4 cartridges in line. Full section of gallery.

Fig. 7.—Explosive D.

100 grammes. Full section of gallery.

Fig. 10.—Dynamite Gomme, No. 1.

300 grammes. 3 cartridges side by side. Full section of gallery.

Fig. 3.—Explosive B (Sample No. 1).

300 grammes. 3 cartridges in line. Full section of gallery.

Fig. 5.—Explosive C (Sample No. 1).

400 grammes. 4 cartridges (3 + 1). Full section of gallery.

Fig. 8.—Explosive D.

200 grammes. 2 cartridges side by side. Full section of gallery.

♦

Fig. 11.—Dynamite Gomme, No. 1.

300 grammes, 3 cartridges in line. Internal stonedusting.
Full section of gallery.

Fig. 6.—ExplosiveJC (Sample No. 2).

600 grammes. 6 cartridges in 3 rows. Full section of gallery.

Fig. 9.—Explosive E.

200 grammes. 2 cartridges side by side. Full section of gallery.

Fig. 12.—Tonckite, 10b.

900 grammes. 9 cartridges in 3 rows. Full section of gallery.

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