352 
ON THE ^lOVEMENTS OF THE FLAME IN THE EXPLOSION OF GASES. 
Fig. 62. 
Fig. 63. 
Fig. 64. 
Fig. 65. 
Fig. 66. 
Fig. 67. 
Fig. 68. 
Fig. 69. 
Fig. 70. 
Fig. 71. 
Fig. 72. 
Fig. 73. 
Fig. 74. 
Fig. 74a. 
Fig. 75. 
Fig. 76. 
i .T 
'Ig. It. 
Fig. 78. 
Fig. 79. 
Fig. 80. 
Fig. 81. 
Fig. 82. 
C^Ni + 0:> fired in centre of tube 6 inches long; the flames are checked .symmetncally by souud- 
Avaves reflected from the ends of the tube. 
Explosion of CoNo + 20o Avhere sound-waA'e is overtaken by exjflosion before reaching end of 
tube. 
Explosion of C^N:.. + 20_. where sound-wave reaches end of tube first. 
,, ,, ,, sound-waves return from both ends of tul)e and cross flame 
symmetrically. 
Explosion of C:;Ni -f 20o fired at closed end of tube. 
,, ,, ,) I inches from closed end. 
Oscillations of flame in explosion of CSo-i-SNO after passing 4 feet down tube. 
C:.No -f Go fired 3 inches from open end of tube. 
PLATE 19. 
Elfect of “ salting ” part of tube traversed by detonation of 2 H 2 + O 0 , showing “break” in line 
of detonation. 
Effect of “salting” part of tube traversed by detonation of 2 H 2 + O 2 , showing “break” in line 
of detonation. 
Glass tube magnified by halation. 
Platinum wire magnified by halation. 
Explosion of electrolytic gas in centre of short tube, showing effect of reflected sound-Avaves. 
Plan of 74, shoAA'ing path of sound-Avawes. 
Explosion of electrolytic gas in centre of short tube. The reflexions are nearly symmetrical. 
,, ,, ,, fired near one end of short tube. The flame is less complicated. 
PLATE 20. 
Explosions of the mixture GSo-poO^. 
JMixture fired at one-fourth the length from one end : nearly parallel AAuiA'es are produced by 
reflexions. 
Mixtirre fired at same time at one end and at one-fourth the distance from other end. The 
sound-Avaves are A’isible as they cross the Imrning gases. 
Mixtiu'e fired at lioth ends of the tirbe at same time. 
Explosion started in centre of tube, and the initial flame struck by detonation coming from left 
hand. 
Explosion started at one end of tube, and initial flame struck lyv detonation coming from left 
hand. ” 
The explosion has spread considerably before it is struck by detonation as before. 
