There is a wide range of prices depending upon quantities, calorific value, ash and sulphur content and other factors.
I would not like to estimate the calorific value of a merchant ship as compared with that of a capital ship.
It is smokeless and has the highest calorific value by weight of any coal.
So far the distribution by a national grid at low pressure of low calorific gas has not proved particularly attractive.
The number of calories in one pound of butter or margarine is 3,616, the calorific value being the same.
I am advised that a calorific value of approximately 4,000 calories a day is necessary for a man doing heavy work.
This fuel has a fairly high calorific value, but in order to make it combustible radical re-design of our water-tube boilers has been necessary.
The calorific content of the coal is another variable, but such matters are not great mysteries.
