one o'clock in the morning
Under such circumstances a sailing vessel would have had to reef in her topsails and her foresail . Everything showed that the wind was rising in the northwest . The storm-glass became much troubled and its movements were most disquieting . At one o'clock in the morning the wind came on again with extreme violence . Although the aeronef was going right in its teeth she was still making progress at a rate of from twelve to fifteen miles an hour . But that was the utmost she could do . Evidently preparations must be made for a cyclone , a very rare occurrence in these latitudes .