"--_The Pictorial
World._
ANSWERS TO CORRESPONDENTS.
EDUCATIONAL.
E. A. T.--There is a School of Telegraphy in Moorgate-buildings, at the
back of Telegraph-street, E.C. All candidates for free admission must
have passed an examination in handwriting and the first four rules of
arithmetic under the Civil Service Commissioners, in Cannon-row, W.C.,
aged not under fourteen nor over eighteen years. They must be gifted
with quickness of eye and ear and a delicate touch. In three or four
months they have acquired the art, working four hours a day. They must
be proficient in the use of four instruments. The pupils in this school
are only intended for service in London.
CEDRICA.--In reference to Gall's or Mercator's projection, you may
perceive that by doing away with perspective you obtain the relative
distances, as well as the height of the mountains compared with the
general surface, without deducting through foreshortening. You write
fairly well, but too large to be pretty.
SINE.--The aurorae are closely connected with the earth's magnetism,
although their exact relationship is unknown. The appearance takes place
equally round both magnetic poles.
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