DOI Page / Citation link:
https://doi.org/10.11588/diglit.1311#0287
OF THE WORLD'S INDUSTRY. 247
effectually filled in a few moments. These globes may be folded into a very small
compass.
Kummer, of Prussia, exhibited a terrestrial globe in relief, four feet in diameter. The
execution was excellent; not only were the elevations attended to with great care, but also
highlands of moderate elevation, and the courses of rivers, received the same degree of
attention. A prize medal was voted by the jury to M. Kuramer for this globe. Goodyear,
of the United States, exhibited inflated globes two feet in diameter, of India-rubber or silk,
varnished with the former material—also India-rubber maps. Grosselin (France) exhibited
georamas and uranoramas to be used as lamp-shades; also some very good and distinct
celestial globes, in which the figures and constellation boundaries were neatly and prettily
laid down, so as not to confine the representation of the stars. Ziebermayer (of Austria)
exhibited a small terrestrial globe, enclosed in a glass sphere, on which the celestial spheres
and stars were traced. By means of mechanism, the places of the sun and moon among
the stars were shown. Heidi, of Austria, exhibited a small globe of the moon, about ten
inches in diameter; the engraving was of a sepia colour, somewhat faintly tinted, and of a
seleno-topographical rather than a pictorial character. Some of the principal names were
inserted. It was mounted on a brass pillar, with a horizontal circle, showing lunar longi-
tudes, and a vertical one for latitudes; the lunar axis was vertical.
Relief, or Model Mapping.—Denton exhibited specimens of model or relief mapping, in
its various stages, with all the tools necessary for use. The base of the model exhibited
was of slate, a material which may be procured of sufficient thickness to bear any weight
in a horizontal position, may be ground sufficiently thin for framing, and may also be
worked to the smoothest possible surface: thus containing the qualities necessary for the
work in question, the use and accuracy of which are dependent upon the material upon
which the superstructure is raised. To represent the altitudes depicted in the contour
map, a simple mechanical process is adopted; slips or ribbons of thin copper, cut parallel,
of different breadths and of any length, are prepared. Each breadth represents a contour,
and is proportioned to a certain elevation: after careful measurement with the altitudes
which they are intended to represent they are each adjusted and secured in their true
position. The model so prepared is ready for covering with plaster of Paris, a substance
well suited to give a finished appearance to the work. After the plaster is dry, the whole
should be scratched down until the light edge of each copper ribbon peeps to the surface.
The model is thus prepared for the reception of the oil colours intended to trace upon it
the geographical details of the country. The jury awarded a prize medal to Mr. Denton.
Schoell (Switzerland) exhibited a model in relief of Mount Sentis, and the mountainous
regions about Appenzell, including a surface of about 150 square miles. It was executed
with great spirit and distinctness, and was accompanied by a chart on a smaller scale of
the same region (scale 1 to 25,000), containing the data for its construction, consisting of
a minutely elaborate series of contour or level lines, which covers the whole area, and is
carried into every detail. The merit of the execution was enhanced by the plastic mate-
rial of the model, as well as the apparatus used in its construction, being of the artist's
own invention. This work was considered by the jury to merit a prize medal.
Ibbetson exhibited an exceedingly well-executed relief model of the Isle of Wight, on a
scale of three feet to one mile, the elevation being on the same scale. The geographical
and geological features of the country were carefully delineated, A prize medal was
awarded to captain Ibbetson. We cannot dismiss the subject of model mapping without
a few words on its beauty, utility, and agreeableness. How pleasant must it be to retrace
among the miniature mountains and valleys our former wanderings, or, if yet " untra-
velled," to anticipate, with all the freshness of youth, a first exploring of the fairy
precincts, so elaborately and so correctly laid down. With such a map before us we
effectually filled in a few moments. These globes may be folded into a very small
compass.
Kummer, of Prussia, exhibited a terrestrial globe in relief, four feet in diameter. The
execution was excellent; not only were the elevations attended to with great care, but also
highlands of moderate elevation, and the courses of rivers, received the same degree of
attention. A prize medal was voted by the jury to M. Kuramer for this globe. Goodyear,
of the United States, exhibited inflated globes two feet in diameter, of India-rubber or silk,
varnished with the former material—also India-rubber maps. Grosselin (France) exhibited
georamas and uranoramas to be used as lamp-shades; also some very good and distinct
celestial globes, in which the figures and constellation boundaries were neatly and prettily
laid down, so as not to confine the representation of the stars. Ziebermayer (of Austria)
exhibited a small terrestrial globe, enclosed in a glass sphere, on which the celestial spheres
and stars were traced. By means of mechanism, the places of the sun and moon among
the stars were shown. Heidi, of Austria, exhibited a small globe of the moon, about ten
inches in diameter; the engraving was of a sepia colour, somewhat faintly tinted, and of a
seleno-topographical rather than a pictorial character. Some of the principal names were
inserted. It was mounted on a brass pillar, with a horizontal circle, showing lunar longi-
tudes, and a vertical one for latitudes; the lunar axis was vertical.
Relief, or Model Mapping.—Denton exhibited specimens of model or relief mapping, in
its various stages, with all the tools necessary for use. The base of the model exhibited
was of slate, a material which may be procured of sufficient thickness to bear any weight
in a horizontal position, may be ground sufficiently thin for framing, and may also be
worked to the smoothest possible surface: thus containing the qualities necessary for the
work in question, the use and accuracy of which are dependent upon the material upon
which the superstructure is raised. To represent the altitudes depicted in the contour
map, a simple mechanical process is adopted; slips or ribbons of thin copper, cut parallel,
of different breadths and of any length, are prepared. Each breadth represents a contour,
and is proportioned to a certain elevation: after careful measurement with the altitudes
which they are intended to represent they are each adjusted and secured in their true
position. The model so prepared is ready for covering with plaster of Paris, a substance
well suited to give a finished appearance to the work. After the plaster is dry, the whole
should be scratched down until the light edge of each copper ribbon peeps to the surface.
The model is thus prepared for the reception of the oil colours intended to trace upon it
the geographical details of the country. The jury awarded a prize medal to Mr. Denton.
Schoell (Switzerland) exhibited a model in relief of Mount Sentis, and the mountainous
regions about Appenzell, including a surface of about 150 square miles. It was executed
with great spirit and distinctness, and was accompanied by a chart on a smaller scale of
the same region (scale 1 to 25,000), containing the data for its construction, consisting of
a minutely elaborate series of contour or level lines, which covers the whole area, and is
carried into every detail. The merit of the execution was enhanced by the plastic mate-
rial of the model, as well as the apparatus used in its construction, being of the artist's
own invention. This work was considered by the jury to merit a prize medal.
Ibbetson exhibited an exceedingly well-executed relief model of the Isle of Wight, on a
scale of three feet to one mile, the elevation being on the same scale. The geographical
and geological features of the country were carefully delineated, A prize medal was
awarded to captain Ibbetson. We cannot dismiss the subject of model mapping without
a few words on its beauty, utility, and agreeableness. How pleasant must it be to retrace
among the miniature mountains and valleys our former wanderings, or, if yet " untra-
velled," to anticipate, with all the freshness of youth, a first exploring of the fairy
precincts, so elaborately and so correctly laid down. With such a map before us we