It is only here and there and for short stretches that the river is lost in impenetrable thickets. Marvellous are those serried ranks of trees! marvellous, too, the sylvan galleries through which more usually it shapes its way! They take the eye captive and seem to withhold some unsuspected secret, some strange riddle, behind their solid mass of succulent foliage. It is strange that these primeval trees should still survive in all their strength with all the parasitic plants and creepers that cling to them, strangling them in their embrace. You would almost say that they lived on but as a prop to support the plants and creepers in their fight for life. Convolvuli, white and violet, stoop forward over the water, and the golden yellow acacia blossoms brighten the picture. In the more open reaches dragonflies and butterflies glisten all around us in the moist atmosphere. A grass-green tree-snake glides swiftly through the branches of a shrub close by. A Waran (_Waranus niloticus_) runs to the water with a strange sudden rustle through the parched foliage. Everywhere are myriads of insects. Wherever you look, the woods teem with life. These woods screen the river from the neighbouring velt, the uniformity of which is but seldom broken in upon by patches of vegetation. The character of the flora has something northern about it to the unlearned eye, as is the case so often in East Africa. It is only when you come suddenly upon the Dutch palms (_Borassus æthiopicus_, Mart., or the beautiful _Hyphæne thebaica_, Mart.) that you feel once again that you are in the tropics. [Illustration: _C. G. Schillings, phot._ VIEW OF MAWENZI, THE HIGHEST PEAK BUT ONE OF KILIMANJARO, TAKEN WITH A TELEPHOTO-LENS.] [Illustration: _C. G. Schillings, phot._ VIEW OF KILIMANJARO, TAKEN AT SUNSET.] The river now makes a great curve round to the right. A different kind of scene opens out to the gaze--a great stretch of open country. In the foreground the mud-banks of the stream are astir with huge crocodiles gliding into the water and moving about this way and that, like tree-trunks come suddenly to life. Now they vanish from sight, but only to take up their position in ambush, ready to snap at any breathing thing that comes unexpectedly within their reach. Doubtless they find it the more easy to sink beneath the surface of the river by reason of the great number of sometimes quite heavy stones they have swallowed, and have inside them. I have sometimes found as much as seven pounds of stones and pebbles in the stomach of a crocodile. The deep reaches of the river are their special domain. Multitudes of birds frequent the shallows, knowing from experience that they are safe from their enemy. One of the most interesting things that have come under my observation is the way these birds keep aloof from the deep waters which the crocodiles infest. I have mentioned it elsewhere, but am tempted to allude to it once again.