Part 1.  Portable Apparatus.
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Series of Trials.                       | I. |II. |III.| IV.| V. | VI. | VII.|VIII.
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Contents of boiler, in gallons          |3.85|4.18| —  |4.18|4.18| 4.18| 5.7 |5.7
Water added during the process          | —  |1.54| —  | —  | —  |  —  | 1.4 |0.6
Temperature of water      degs.  Fah.    | —  | —  | —  | 72 | 57 |  54 |  43 |132
Firing commenced with spirits of        |    |    |    |    |    |     |     |
wine at                     hours min.| —  |2.12|9.10|4.30| —  |10.0 |  —  | —
Firing commenced with gas at       "    |1.30| —  | —  | —  |3.0 |  —  |  —  | —
Firing commenced with coke at      "    | —  | —  | —  | —  | —  |  —  |  —  |1.10
Firing commenced with charcoal at  "    | -  | -  | -  | -  | -  |  -  |10.12|
Steam generated at                 "    | —  |2.34|9.28|4.41|3.15|10.18|10.35|1.34
212 deg. in chamber registered by       |    |    |    |    |    |     |     |
external thermometer at           "    |2.30|2.40|9.34| —  | —  |  —  |10.50|1.52
212 deg. in clothes registered by       |    |    |    |    |    |     |     |
electrical thermometer at         "    | —  | —  | —  |5.25|4.18|12.12|  —  | —
221 deg. in clothes registered by       |    |    |    |    |    |     |     |
electrical thermometer at         "    | —  | —  | —  | —  | —  |  —  |11.51|2.34
Highest temperature in chamber          |    |    |    |    |    |     |     |
registered by external thermometer deg.| —  |270 |250 | —  |324 | 255 | 302 |275
Mean temperature in chamber             |    |    |    |    |    |     |     |
registered by external thermometer  "  |241 |257 |239 |266 | —  | 253 | 266 |266
Trial closed at          hours, min.    |4.45|4.10|11.4|5.45|4.30|12.30|11.51|2.35
Max. therm. registered in mattress  deg.|262 | —  |  — | —  | —  |  —  |  —  | —
Max. therm. registered in overcoat     “| —  |239 | 226| —  | —  |  —  | 223 |223
Max. therm. registered in winter coat  “| —  | —  |  — |232 |223 | 214 |  —  | —
Max. therm. regis’d in winter trousers “| —  |243 | 239| —  | —  |  —  |  —  | —
Max. therm. regis’d in summer trousers “| —  |246 | 252| —  | —  |  —  |  —  | —
Time required to generate steam min.    | —  | 22 |  18| 11 | 15 |  18 |  23 | 24
Time required to generate 212 deg.      |    |    |    |    |    |     |     |
in chamber                       "     | 60 | 28 |  24| —  | —  |  —  |  38 | 42
Time required to generate 212 deg.      |    |    |    |    |    |     |     |
in clothes                       "     | —  | —  |  — | 55 | 78 | 132 |  —  | —
Time required to generate 221 deg.      |    |    |    |    |    |     |     |
in clothes                       "     | —  | —  |  — | —  | —  |  —  |  99 | 85
Total duration of process         "     |135 |118 | 114| 75 | 90 | 150 |  99 | 85
Water evaporated, in gallons            | —  | —  |  — |1.65|1.90| 2.75| 4.3 |3.3