In using mercury thermometers, it is best, as in the apparatus figured, to work on a large scale (4-in.
Van Rysselberghe, but the later, put forward in 1867, included metallic thermometers and was less successful.
3 were obtained from the readings of a number of platinum thermometers buried in undisturbed soil in horizontal positions at M`Gill College, Montreal.
Flows through the spiral coolers N and M, and finally through the box H, where it is well mixed before passing the outflow thermometer P. As soon as a steady state is reached, the difference of temperature between the outflow and inflow thermometers, multiplied by the current of water in grammes per minute gives the heat per minute supplied by combustion.
Pernet, Extended From O° To 100° C., And Appears To Have Attained As High A Degree Of Excellence As It Is Possible To Reach By The Employment Of Mercury Thermometers In Conjunction With The Method Of Mixture.