& 
Hare’s Blowpipe. 285 
yeahs as might enable them fully to saturate each other. 
la me it would seem, where the highest heat is desired, 
evidently absurd to employ them in any other way, because 
if either gas were present in too great quantity to be acted 
upon, the excess would be worse than useless. Is it not 
universally an object with chemists to use ingredients in the 
proportions in which they saturate each other, especially 
when within a given space and time the most intense reac- 
tion is to be induced? ‘The author of this professedly can- 
did publication would wish to convey the idea of my con- 
trivance being so inferior in power to that adopted by him, 
that in a history of the invention, he does not deem it neces- 
- bilats : 
But while the superiority of the temperature attained by 
are great and undeniable advantages in having them pro- 
pelled from different reservoirs. First, a degree of security 
rom explosion, which cannot be attained with one common 
recipient.* 2d. The possibility of operating on a large 
. Wiehe the gases are kept unmixed in separate reservoirs, and mect oo 
Near the point of efflux in an orifice sufficiently large, as was the case 7 
‘ Ko compound blowpipe, explosion is obvionsly impossible. If t 
'g Leva 
cosdt Oe Bs 37 
fe eetes 
