The following are the mean temperatures:
First evaporator: heating steam 110 deg. C.; juice steam 100 deg. C. Second
evaporator: juice steam 83 deg. C. Third evaporator: juice steam 62 deg. C. As
regards facility of operating the apparatus, the experiment has proved
so conclusive that the plant will be considerably enlarged in view of
the coming crop, in order that a larger quantity of juice may be treated
by the new process. The effect of this will be to still further increase
the saving in coal that has already been effected by the present
apparatus. The engraving which accompanies this article represents the
Weibel-Piccard apparatus as it is now working in the Pohrlitz sugar
works. What we have said of it above we think will suffice to make it
understood without further explanation.--_Le Genie Civil_.
* * * * *
COMPARISON OF STRENGTH OF LARGE AND SMALL ANIMALS.
W. N. LOCKINGTON.
M. Delebeuf, in a paper read before the Academie Royale de Belgique, and
published in the _Revue Scientique_, reviews the attempts of various
naturalists to make comparisons between the strength of large animals
and that of small ones, especially insects, and shows that ignorance or
forgetfulness of physical laws vitiates all their conclusions.
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