This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 Excerpt: ...before the change, the thermometer stood at 75, and at 2 p.m., rather less than one hour after, it had fallen to 65. A roll of cumulus cloud of a rather undefined character was first seen at 12-30 p.m., with a line of ragged cirrus beneath. The latter, as the storm advanced, rose in front of and obscured the cumulus. ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1896 Excerpt: ...before the change, the thermometer stood at 75, and at 2 p.m., rather less than one hour after, it had fallen to 65. A roll of cumulus cloud of a rather undefined character was first seen at 12-30 p.m., with a line of ragged cirrus beneath. The latter, as the storm advanced, rose in front of and obscured the cumulus. Five minutes later, cirrus were moving horizontally, vertically, and in every other direction from a point in the cloud lying due south. The change of wind at Sydney came at 1 p.m., and was attended by much dust, and some rain which was entirely owing to electrical influences, it was generally light from the western slopes to the coast. Passing from this record of the double burster, it is now necessary to consider various facts relating to the time taken by bursters in travelling along the coast. RATE OF TRANSLATION OF BURSTERS. From the preceding remarks and the figures quoted in the table page 39, as well as other figures appended to page 43, it will appear that no definite relation can be traced between the rate of translation and velocity of the wind in bursters. As already demonstrated, it is quite possible for two bursts to occur on different parts of the coast at the same time, and it is also possible for a BURST SIMULTANEOUS OVER A WIDE AREA. burst to be felt at the same moment over an extensive area. (See table 28th November, page 43. Since there is no visible connection between the velocity of the wind and the ratio of translation of the burst itself, it may throw light on the matter if we look for some explanation of the fact that the southerly change is generally first experienced on the south coast of the Colony. BURSTERS FELT FIRST SOUTH OF SYDNEY. The most probable explanation is as follows: --The high pressure following the depr..
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