It is, however, highly improbable that a'typhoon will coincide exactly with this unusually high tide, So far the highest record established at the Public Garden is 163 feet, above the Woosung zero, or 148 feet above the conventional lowest low water at the Public Garden. There is practically no danger of perman-tent floods in the neighbourhood of Shanghai, because the low waters, although' they may be temporarily! raised as much as six feet by typhoon, are still well below the] general iand level, so that the water €an soon run off, "The criterion for-a temporary flood in Shanghai is simply the state of the tide and. the strength of the wind, plus a small amount due to the annual fluctuation at the mouth of the Yangtze River, which, however, is only a matter of about we to three feet between summer and winter. The most probable season for flooding is August and Septem ber, because the barometer is. then low, allowing the water to ris neatly one foot, the prevalent wind are from the east or south-east, the Yangtze is at its highest, and during this period the typhoons coming, from the neighbourhood of Guam most frequently pass near to Shang Before mai the remark quoted] earlier la, the article, Dr. Chatley commented:. Changes in the mouth of the Yangtze can have little or no effect on the size of the incoming tidal waves, since these changes are small in comparison with the immense dimensions of the estuary, and, as a matter of fact, have been proceeding for centuries without ig noticeable variations in the conditions."
Text read from the printed page and cleaned; old type leaves the occasional error.