74 
WASHING^ COKING, AND CUPOLA TESTS. 
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Iron hot. 
Iron hot; slag filled up tuyeres after 20th ladle and 
bottom had to be dropped. 
Temperature of iron medium. 
Iron sluggish. 
Iron very hot and fluid. 
Iron hot. 
Iron hot. Bed burned out and charges hung; bot- 
tom had to be dropped after 15th ladle. 
Iron hot. Charges hung and bottom dropped after 
11th ladle. 
Temperature of iron medium. 
Iron cold and dull. 
Iron hot and fluid. 
Iron hot. 
Temperature of iron medium. 
Iron hot. 
Iron cold. 
Iron dull. 
Temperature of iron medium. 
Temperature of iron medium. 
Do. 
Do. 
Iron hot. 
Temperature of iron medium. 
Do. 
Temperature of iron medium; 27th ladle— 92 
pounds at 3.54; 28th ladle— 52 pounds at 3.54J; 
29th ladle— 39 pounds at 3.55. 
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