r cooking purposes. on flre; but as the latter method is that generally adopted, these waiters are assuredly not aware that they are perform- Great care should be exercised in the using of charcoal, as we purpose giving a description of the mode of operation. ing an operation in physics, and giving… … they may again be driven to the center this is proceeded with in the following " — •-■ of the water, and the experiment may manner: A CHARCOAL PIT. be repeated two or three times; but, The pit is made of a conical shape, after that, it no longer succeeds, be- 31 feet in diameter and 9 feet in…
