and hail storms, and deluges of rain. This type is not peculiar to any season of the year, and the country they affect is usually south of Lat. 30°. The particular square headed Λ depression under discussion occurred in July, 1891. Its effects were widespread and its life persistent, and its peculiarity in a more or less distinctive form was maintained during its passage over six degrees of longitude, and its effects most severe in Victoria.
In Chart 37, July 8th, 1891, the square headed Λ is shown when over South Australia. The gradients about it excepting those on its eastern side were moderate; winds were from fresh to strong. Following it is a high pressure of decided energy, and preceding it to the east an anticyclone of little or no character; on the previous day rain fell over greater part of the southern seaboard and in Tasmania.
Chart 38, July 9th, the depression has become more extensive, but has lost energy. The relative powers of the anticyclone remains the same, winds were generally lighter, but the rain covered a much wider area than on the previous day. As this storm moved to the east its characteristic weather was maintained.
