channel, and this character seemed to be preserved by various trees growing in the banks. When their large roots became denuded by the floods, or were washed out, or partially gave way, so that the tree fell over the stream, they presented impediments, first to the floating-wreck, and, next, to the water itself: when that collection of floating wreck became consolidated with muddy deposit, new banks so formed forced the river into new currents, working out new courses; and this appeared to give the peculiar character so uniformly observed. It seems extremely favourable for the retention of water in a country where it may be scarce; for the many ponds so formed and shaded from the sun, preserve it much better and longer, than if one continuous unobstructed channel alone, received and carried off, the water of the surface. I found the hollows we saw this day drier than usual; but we at length succeeded in discovering three good ponds. The foliage of the trees, with dry and naked water-worn roots, presented all the hues of an English autumn, although none of these were deciduous. This effect I was disposed to attribute to unseasonable drought, or past heat. The weather we had was delightful; for, although the thermometer in the shade rose sometimes to 90 deg. about 4 P.M., the heat of the Bogan was still fresh in our recollection; and the frosts which, not above three weeks before, had disturbed our sleep, made this degree of heat as welcome as the flowers in May. Latitude, 22 deg. 55' 35" S. Thermometer, at sunrise, 38 deg.; at noon, 80 deg.; at 4 P.M., 85 deg.; at 9, 51 deg.. (LXI.) [* G. PENDULA (Lindl. MS.); ramis gracilibus pendulis, foliis linearibus in petiolum sensim angustatis 5 uncias longis cum ramo parallelis.] [** S. SALICINUS (Benth. MS.); foliis lanceolato-linearibus integerrimis apice subuncinato ramulisque canescentibus, calycis foliolis brevibus lanceolatis, corollae puberulae inferne attenuatae laciniis obtusis infima retusa vix caeteris magis soluta.--Very near S. PUBIFLORUS, but much whiter, the flowers smaller with the lobes much more equal, the lower one much broader.]