e men
who are engaged in the practical development of gas and oil fields, said
he, made great account of rock-pressure. It is the first fact they
inquire after in a new gas-field. They appreciate its importance,
knowing that the distance of the markets they care to reach and the size
of the pipes they can employ are entirely dependent upon this element.
He defined the term "rock-pressure", and showed the decrease of its rate
westward. He said four hundred thousand people in Northwestern Ohio and
Central Indiana alone depended upon natural-gas for fuel and
illumination.

* * * * *

STATUE GIVING A DOUBLE IMAGE.--At the Italian exhibition in the Champ de
Mars there was a statue that attracted much attention from the visitors.
It represented Goethe's Marguerite standing before a mirror. This latter
gave by reflection the image of Faust. The artifice was well concealed
by the sculptor. In reality, it was not a double statue, but the figure
of Faust was skilfully obtained by means of the folds of Marguerite's
robe.

Marguerite holds her arms in front of her, and these same arms form
those of Faust, who holds them crossed behind his back. Faust's face is
carved in Marguerite's back hair, and the man's figure is obtained, as
before stated, by means of the folds of the woman's robe. This curious
object might inspire some of our sculptors with an analogous idea. We do
not know the name of the author of the statue, but we can say that it
was exhibited by Mr. Francesco Toso, a Venetian manufacturer of mirrors.
The statue was of wood, and of nearly life-size.--_La Nature_.

* * * * *

SITE FOE THE KAISER'S MONUMENT.--Three or four Berlin banks have secured
the preemption of all the buildings in Schlossfreiheitstrasse, with a
view to pulling them down and fulfilling the Emperor's wish to have his
grandfather's monument erected there. Only a few days ago three of the
most eminent Berlin architects declared that the place was absolutely
unsuited for that purpose. The banks are said to have agreed to pay
5,000,000 marks for the houses, and an equal amount as compensation,
and intend to form a lottery of 40,000,000 marks, with prizes to the
amount of 30,000,000.--_The London Standard_.

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[Illustration: TRADE SURVEYS]

The salient features of the business situation this week afford every
encouragement to the promoter