Posrriox or Tiwe-BaLL: Lat. 31° 14' 7" N.; Long. 121° 29 103" B, or 8h. Sin. 66.Tn0c. E. of Groeawich.
READING oF TH BAROMETER.—At4 p.m. signals indicating the Barometer readin, an observed at Sicawei Observatory at 4'p.m. and reduced to 32° and to moan sea-lev
28, Examplos:—025 30.25; 994 29.04; 898 28,98, gill be given in inches and tenth of an inch by omitting the 3 of 20 and 2 of 29 or Locat. Tite.—Shangbai mean time is reckoned from the 120th meridian 8h. Om. (mee, East of Greenwich.
Tine BaLt.—The signal I hoisted at the Semaphore, which is in connexion with the Sicawei Observatory; ib is made daily aa follows:—The ball is hoisted half-mast at 11h. 45m. a.m., to the masthead at 11h. 60m. a.m., and drops for the first time at 11h. 65m. Shanghai mean time. The ball is immediately hoisted again to the masthead and drops a second time at noon.
If from whatever cause the time ball fails to drop, or drops at the wrong time, the Till be tried, Ifthe toon signal abedd also fil, the some flag wil be again hoisted. numeral fag No. 0 will be hoisted at the masthead for one minute, and the noon signal
A time ball is also dropped ab noon from the Customs' signal tower sh Pootung Point rimultancoualy with the Gring of " gun.
In addition to the signal given by the Time-Ball at noon, the exact China.\ cast time is given every night by the extinction of the four white lights of the time-signal Tower on the French Bund.
The light are shown about 2 minutes before the first extinction. id " oth 0.0 toh 0 00 In case of error or failure. a red light is shown, or preferably the two white lamps of the yard arm are lighted op daring a few seconds to annul the wrong signal.—The Sdgnals are worked directly from Obserratory by electric apparatus
Text read from the printed page and cleaned; old type leaves the occasional error.