OF THE FLAME IX THE EXPLOSIOX OF GASES. 
351 
Fig. 3L 
Fig. -3-5. 
Fig. 37. 
Fig. 38. 
Fig. 39. 
Fig. 40. 
Fig. 41. 
Fig. 42. 
Fig. 43. 
Fig. 44. 
Fig. 45. 
Fig. 46. 
Fig. 47. 
Fig. 48. 
Fig. 49. 
Fig. 50. 
Fig. 51. 
Fig. 52. 
Fig. 53. 
Fig. 54. 
Fig. 55. 
Fig. 56. 
01 . 
Fig. 57 a. 
Sudden increment shown by flame travelling one way only. 
Detonation passing through three parallel glass tubes joined together by lead junctions. In 
passing each junction the explosion is damped down and recoujjs itself suddenly. 
PLATE 14. 
Detonation passing through glass bend without retardation. 
,, ,, ,, flexible rubber junction ^l■^thullt retardation. 
„ „ „ rigid copper junction „ 
Collision of true detonation-waves (C-iX^-l-20:;). 
55 55 55 55 55 
„ (2hD + 0,). 
“ Ketonation ’’-wave running parallel vdth collision-wave. 
PLATE 15. 
lietonation-wave and reflexion-wave. 
,, „ started at end of tube. 
Explosion started in centre of long tube; retonation-waves return from points where the 
detonation-waves are set up. 
Explosion started in centre of short tube; retonation-waves are set up at either end of tube 
(C.>Xo + 0,). 
Exjdosion started in centre of short tube; retonation-waves are set up at either end of tube 
(2C2H0 + 3O,). 
Velocity of retonation and reflexion-Avave compared. 
,, detonation and retonation-Avaves (in sejtarate tubes) compared. 
PLATE 16. 
Explosion shoAving initial Avave overtaken 1)y faster Avave. 
,, ,, that the overtaking flame comes from the near end of the tube. 
55 ’5 55 55 '5 55 
55 55 55 55 55 55 
,, of C 2 N 2 -tOo, shoAA'ing retonation-Avave started from near eml of tube and running 
nearly parallel with detonation-AvaA c. 
Explosion of C2X0-1-2O2, shoAving reflexion of -wuiut from near end of tube checking the flame 
and pi'oducing a visildc Avave in the burning gases. 
Plan of 57, shoAA'ing path of AvaA'es. 
PLATES 17 AND 18. 
Fig. 58. Explosion of CoX^-l-O^ in loAver tube, shoAA-ing reflexion of sound-Avave from further end of tube. 
Hpper photograjAh shoAvs detonation of same mixture in another tube. 
Fig. 58a. Plan of 58, shoAving path of sound-Avave. 
Fig. 59. C-jX^-f O 2 fired at one end of tube 8{, inches long. 
Fig. 60. Mixture C^X^H-Oo filed 4 inches from one end of tube 13 inches long. 
Fig. 60a. Plan of 60, shoAA’ing jiaths of sound-Avaves. 
Fig. 61. C 2 X 2 -I-O 2 fired in centre of tulie 8 inches long; intense retonation-AA’aves are sent back from 
each end. 
