ON STEAM-SHIP PERFORMANCE. 199 



British Association. — -Committee on Steam-ship Performance. 

 Return of H.M's Steam-ship 



Date, day, the day of 18 



Date 



Latitude 



Longitude 



Ship's Course 



Wind : — 



Direction 



Force 



State of Sea , 



Under Sail alone : — 



No. of Hours 



Area of Sail set 



Description of Sail set 



Average Speed per hour 



Under Sail and Steam combined : — 



No. of Hours 



Area of Sail set 



Description of Sail set 



Average Speed per hour 



Under Steam alone : — 



No. of Hours 



Average Speed per hour 



Engines : — 



Cut-ofFin proportion of Stroke 



Lap of Slide Valve 



Average Revolutions per minute 



Mean pressure of Steam at or near Cylinder 



Mean pressure in Cylinder 



Barometer: — 



Vacuum • 



Pressure 



Temperature of Sea-water 



SUp of Screvr 



Boilers : — 



No. of Furnaces at Work 



Square Feet of Grate Surface atAVork. 



Square Feet of Heating Surface at Work 



Weight to which Safety Valve is loaded per Square Inch... 



Pressure of Steam per Square Inch in Steam Chest 



Density of Water 



Consumption of Coal per hour 



Description of Coal during period 



Indicated Horse-power, u)i<A Diagrams 



Evaporation of Water per hour 



Draught of Water : — 

 On Leaving Port — Forward 



Ditto ditto Aft 



On Arriving in Port — Forward ■ 



Ditto ditto Aft 



Remarks 



Oifice, 19 Salisbury Street, Strand, 



London, W.C. Signature^ ^ 



Date 



