30
___________|____________| | | | | | | |Self-luminous; 0.5 | Calcium carbide | | | | cubic foot per hour| (yielding 5 | 1.00 | | |Self-luminous; 0.7 | cubic feet of | | | Acetylene | cubic foot per hour| acetylene per | 1.10 | | |Self-luminous; 1.0 | lb.) at 15s. | | | | cubic foot per hour| per cwt., inclu- | 1.16 | | |Incandescent; 0.5 | ding delivery | | | | cubic foot per hour| charges. | 0.74 | |____________|____________________|____________________|____________| | | | | | | Petroleum | Large lamp . . . . | Oil, 9d. per gal- | 0.84 | | (paraffin | | lon, including | | | oil) | Small lamp . . . . | delivery charges. | 0.92 | |____________|____________________|____________________|____________| | | | | | | |Flat flame (bad) 5 | | | | | cubic feet per hour| Public supply | 3.00 | | |Flat flame (good) 6 | from small | | | Coal Gas | cubic feet per hour| country works, | 2.16 | | |Incandescent (No. 1 | at 5s. per 1000 | | | | Kern or Bijou In- | cubic feet. | 0.38 | | | verted); 1-1/2 | | | | | cubic feet per hour| | | |____________|____________________|____________________|____________| | | | | | | Candles |"Wax" (so-called) . | 5d. per lb. | 2.60 | |____________|____________________|____________________|____________| | | | | | | | Small glow . . . . | Public supply | 2.16 | | | Large glow . . . . | from small | 2.64 | | Electricity| | town works | | | | Tantalum . . . . . | at 6d. per | 1.45 | | | Osram . . . . . . | B.O.T. unit. | 0.98 | |____________|____________________|____________________|____________|
_______________________________________________________________________ | | | | | | | | | |Inci- | Exhaus- |Vitiation | Heat | | | | den- | tion of | of Air. |Produced.| | | Description of | tal |Air.Cubic|Cubic Feet|Number of| |Illuminant. | Burner or Lamp. |Expen-|Feet Dep-| of Car- |Units of | | | | ces. |rived of |bonic Acid| Heat. | | | | | Oxygen. | Formed. |Calories.| |____________|____________________|______|_________|__________|_________| | | | | | | | | |Self-luminous; 0.5 | | | | | | | cubic