Terrestrial and Celestial Globes Volume 2: Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and AstronomyStevenson, Edward Luther
History
Terrestrial and Celestial Globes Volume 2: Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and Astronomy
Stevenson, Edward Luther
Geography -- History; Globes
The last important globe maker of the eighteenth century in Italy was
Giovanni Maria Cassini (fl. 1790), an engraver, and a geographer of
distinction, to the truth of which statement his excellent work gives
testimony. As evidence of his interest in the matter of globe
construction we have the introduction to his ‘Nuovo atlante geografico
universale ...,’ wherein he gives carefully devised rules for the
construction of globe gores, and in addition we still find a number of
his completed globes, particularly in Italian museums and libraries.
These globes (Fig. 131), dated, the terrestrial 1790, and the celestial
1792, have each a diameter of about 35 cm., each covering map being
composed of twelve gores cut at latitude 80 degrees both north and
south, the polar space having the usual circular disc covering. Each is
furnished with a brass meridian circle within which the sphere may be
revolved, an hour circle, a horizon circle, on the surface of which are
the usual concentric circles with the names of the several zodiacal
constellations, the names of the months, and the principal directions.
The terrestrial globe has an author and date legend reading, “Globo
terrestre delineato sulle ultime osservazioni con i viaggi e nuove
scoperte del Cap. Cook inglese. In Rome.”
[Illustration: Fig. 131. Terrestrial Globe of Giovanni Maria Cassini,
1790.]
In The Hispanic Society’s collection is a terrestrial globe (Fig. 132),
being a solid wooden ball 21 cm. in diameter, over which has been pasted
the gore map composed of twelve sections, each cut at the parallel of 70
degrees both north and south, the polar space being covered with
circular discs each forty degrees in diameter. It is neither signed nor
dated but is clearly of German origin, since practically all
geographical names and legends are in the German language. The title,
placed within a circle to the west of Australia, “Neu Holland,” reads
“Die Erde nach den neusten Entdeckungen und besten Charten entworfen.”
Its date cannot be far from 1800, perhaps a little later, seeing that it
assigns the name “Nord Amerikanischer Staat” to the region east of the
Mississippi River, except to “Florida” which extends westward to this
river. We find but one actual date given, this referring to the
discovery of a small group of the “Gesellschafts Inseln,” reading
“Inseln welche die Spanier entdekt haben sollen 1773.” It is constructed
to revolve within a graduated meridian circle of brass and an octagonal
horizon of wood, on which are indicated in picture the twelve signs of
the zodiac, the calendar, and the thirty-two winds or directions, the
whole resting on four plain supports of wood strengthened below by light
crossbars.
Public-domain text, read in full here on John Shaqi.
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