20 
boiler under the same circumstances. He saw the import- 
ance of Mr. Morton's proposition, particularly with regard 
to the saving of fuel. At present nothing was known in 
Yorkshire as to the quantity of coal consumed by engines. 
Mr. March said he did not think that the form of the 
circular boiler deserved the castigation which Mr. Hartop 
had bestowed upon it. He condemned it on account of the 
settling of the sediment in that portion of the boiler which 
was most exposed to the operation of heat, but the same 
happened to the waggon boiler in a nearly equal degree ; 
and he thought that any disadvantage arising from that 
circumstance was counterbalanced by the facility with which 
the circular boilers could be repaired. 
Mr. Hartop said that the effect of the settling of the 
sediment was very different in the waggon shaped boiler 
from what it was in the cylindrical boiler. In the former it 
did not remain at the top of the arch which was immediately 
over the fire, but it dropped down into the laggons at the 
sides ; whereas in the cylindrical boiler the sediment fell and 
remained upon that part of it which was most in contact 
with the fire. He did not say this in recommendation of 
the waggon boiler, but to show the difference between those 
boilers and the Cornish boiler, which he was anxious to 
introduce, because it was the best that had been tried on a 
large scale. 
Here the conversation terminated, and the meeting imme- 
diately afterwards adjourned. 
EVENING SITTING— FROM SEVEN TO TEN O'CLOCK. 
At the evening sitting, the Rev. Dr. Hook resumed the 
chair. 
Mr. Embleton thought that the first business of this 
meeting should be to thank the society which had accom- 
modated them with the use of that room for their morning 
and evening meetings, and for announcing to their members 
the intention to meet in that Hall. He moved — 
" That the thanks of the society be given to the Philoso- 
phical and Literary Society of Leeds, for their kindness in 
offering the use of their Hall, and opening their Museum to 
the Society, and to the President and Secretaries for the 
great assistance which they afforded the Society in making 
arrangements for the meeting." 
