Most memorable to me were the long walks which Colonel Roosevelt and I took on the Kaburi Trail, that narrow path which is the only entrance by land to all the great hinterland lying between the Essequibo and Mazaruni Rivers. Majestically the massive trees rose on either side, so that while our contracted aisle was as lofty as the nave of a cathedral, yet it was densely shaded by the interlocking foliage high overhead. Our progress was thus through a glorified tunnel; we traveled molewise with only here and there a glimpse of the sky. Every walk was filled to the brim for me with that infinitely satisfying joy, derived from frank, sympathetic communion with an enthusiastic, true friend. I know of no earthly pleasure more to be desired. Perhaps this is because friends are so rare with whom one can be wholly natural, with one's guard completely down, unafraid of any misunderstanding--an omnimental communion. It was with dismay, at the end of one long walk, that I realized we had forgotten to search for the tropical creatures for which we had presumably set out. We had kept the jungle birds and animals well at distance by a constant flow of human speech--argumentative, eulogistic, condemnatory--of literary and field and museum doings of the scientific world. But we did not wholly neglect the life around us and one of the last problems which we solved that day was that of a small voice, one of those apparently unattached sounds which come from no definite place, nor are referable to any certain source. It might have been a cicada or other insect, it could well have come from the throat of a bird. Were we in the heart of a city we should unhesitatingly have pronounced it a jewsharp played very badly. We set out in search, we stalked it through the thin underbrush, we scanned every branch with our glasses, and when we found it was bird and not insect we shamelessly played upon its feelings and squeaked after the manner of a stricken nestling. We saw that it was a small flycatcher, green with waistcoat of lemon-yellow. Finally after we had learned its fashion of flight, the stratum of jungle it inhabited and its notes, I secured it. Not until then did we perceive that concealed on its head it wore a glorious crown of orange and gold. When my reference books arrive, and we learn the technical name of this little golden-crowned flycatcher or cotinga, I do not think that this title will persist as vividly as the "jewsharp bird of Kaburi trail."