the north and east of the cliffs. From that direction the place is really inaccessible, and, were it not for a hardish ledge which runs at the very base of the precipice, we should have had to turn back. Many times we were up to our waists in the slime and blubber of an old, semi-tropical swamp. To make matters worse, the place seemed to be a favourite breeding-place of the Jaracaca snake, the most venomous and aggressive in South America. Again and again these horrible creatures came writhing and springing towards us across the surface of this putrid bog, and it was only by keeping our shot-guns for ever ready that we could feel safe from them. One funnel-shaped depression in the morass, of a livid green in colour from some lichen which festered in it, will always remain as a nightmare memory in my mind. It seems to have been a special nest of these vermin, and the slopes were alive with them, all writhing in our direction, for it is a peculiarity of the Jaracaca that he will always attack man at first sight. There were too many for us to shoot, so we fairly took to our heels and ran until we were exhausted. I shall always remember as we looked back how far behind we could see the heads and necks of our horrible pursuers rising and falling amid the reeds. Jaracaca Swamp we named it in the map which we are constructing.
The cliffs upon the farther side had lost their ruddy tint, being chocolate-brown in colour; the vegetation was more scattered along the top of them,
