+---------+---------------------+---------------------+ | | Soil. | Air. | | Date. +----------+----------+----------+----------+ | | Maximum. | Minimum. | Maximum. | Minimum. | +---------+----------+----------+----------+----------+ | | _°C._ | _°C._ | _°C._ | _°C._ | | July 2 | 36.0 | 31.0 | 41.0 | 21.0 | | July 3 | 36.0 | 31.0 | 41.0 | 22.0 | | July 4 | 36.0 | 31.0 | 41.0 | 23.0 | | July 5 | 36.5 | 31.5 | 41.0 | 23.5 | | July 6 | 33.7 | 32.0 | 41.0 | 25.0 | | July 7 | 36.0 | 32.5 | 40.0 | 26.0 | | July 8 | 36.0 | 32.5 | 38.0 | 26.5 | | July 9 | 37.0 | | | 25.0 | | July 10 | 37.0 | 32.5 | 40.0 | 24.0 | | July 11 | | 33.0 | | 23.0 | +---------+----------+----------+----------+----------+ An examination of the meteorological reports for Algeria shows that the direction of the prevailing winds varies considerably, although the variation is possibly greater near the coast than in the interior. The winds undoubtedly play an important rôle in the environment of the vegetation of the country. At Algiers, in 1907, winds were reported from the north 288 times, from the east 203 times, from the west 224 times, and from the south 51 times. At Barika, on the High Plateau, the number of times and the directions of the winds for the same year are as follows: northeast, 203 times; east 242; south 21, west 89, and southwest 93. At El Golea, on the desert, the winds were as follows: north 192, northeast 614, southeast 107. The winds from the north, or northerly winds, are cool and laden with moisture, but they are most effective in regions near the coast or in the mountains. Winds from the south are dry winds, and are probably of great importance in limiting the distribution of plants through the increased aridity caused by them.