Plate 44.
CUMULUS.
If great towering masses are making their appearance with little dark fragments between them, as shown in Plate [45], then smart showers may be confidently expected. The cloud figured was a shower-cloud, and the distance is seen through the veil of falling rain. The height and thickness of this particular cloud were measured just after its photograph had been taken. Its base was 1200 metres above the ground, and its summit was 1500 metres further. Its thickness from summit to base was, therefore, not much short of a mile, and the total contents of the cloud were probably between one and a half and two cubic miles. The upper contour is hard and rounded, as in the smaller cloud of Plate 44, but the whole cloud is much larger.
Plate 45.
LARGE CUMULUS.
(Cumulus Major.)
Plate 45.