i 
~ 
On the Production of Steam from heated Tron. 73 
7 
been attained, varies considerably from that which precedes, and 
that possibly different stages of rapidity will be discovered, in differ- 
ent parts of the series following the time of most rapid vaporization. 
First course, comprising twelve series. 
Exhibiting the times in which given quantities of water of known 
temperature, may be successively converted into vapor, while the iron 
which produces it is cooled from redness to the point of ebullition. 
ae 
a 3 3 & °lé-16 5 S 6 
cs oS n~ | = | | ao) ~ i] bi a | 
Neat Sed 6. | ted | Beal St ee 1 ee 
gg) 22/22/22 |/22 Fe] 22 |Be | 22] 2e 
E SEPSS/ SESE) Se Ss Se, 58) Se) Se 
: 7 Le She ie ag ay a 4 Ny &~ Oo on 
NO] So 3 o No No Sy o| 3a oo we 2 oo 
Bic fl a i om oe wf lo | oF ee eee ey 
Pee pte ae (ae je ae [as Suh a 
. Mead - oO . . - 10 . : u 
ae am ae a= Qn ~ as oe = tay Po 
i) 5 $s | Sg Ss 3 | S ot a 
ca Aa lan ee el — oa = Sie ROTEL UME Ic. 
IE hed? i u li ul u Mi i li Ul 
50 |105 | 93 | 478 [126 | ad 121 | 66/11 | 78 | 66 80 
25 | 23 14 15 6 13 12.5| 17 37 
15} 1 9 6.5) 7.5 9 6.5] 7.5 | 14.5] 
21/14] 14 111.5] 10 5| 7 9 
31/19] 17 | 145 a6) 38 1 ts 9 6 6.5 
41 17 6 15 ; 14; 115] U1 5 
69/30] 24 | 195 | 19.5] 1651151 15 14 5 5 
150} 43} 28 | 21.75| 20 9 119] 17 14.5 5 
57 | 87 | 26 27 20 | 19 17 
-} + [67] 50 | 31 30 | 265!22!1 23 | 19 5 
135 | 63.5] 38 38 80 |25[{ 27 | 22 | 6.75 
: 49 | 389.5] 31 4.1.6 8.5 
oe - | 174 | 70 66 4 |38| 41.5] 25 7 7 9.5 
99 45 | 50 W548 
68 | 72 | 40 | 8 11.5 
4k a, 95| 93 | 5 13 3 
: ‘ . {190} 183 | 82 | 18 14 
; 5 | 20 15 
a 22 15.5 
25 17 
34 19 
‘ 42 22 
50 26 
<a 83 30 
i ; 140 " 
27} | . os 
a gen 42 89 
nel oe 156.5 | 
RESULTS. 
Ist ser; ee 
Soe. 5$ 02. generated in 281" | 2d series. 4 02. generated in 457 
tervals, 60” each 120 7 intervals 10” each 7 
wh : mS er s ioe : 
y ole time of the series, 401] whole time of the series 527 
OL. XXI.—Npo. ; 0 
