As to the feuds of the two learned men, they are continuous and bitter. It must be admitted that Challenger is provocative in the last degree, but Summerlee has an acid tongue, which makes matters worse. Last night Challenger said that he never cared to walk on the Thames Embankment and look up the river, as it was always sad to see one's own eventual goal. He is convinced, of course, that he is destined for Westminster Abbey. Summerlee rejoined, however, with a sour smile, by saying that he understood that Millbank Prison had been pulled down. Challenger's conceit is too colossal to allow him to be really annoyed. He only smiled in his beard and repeated "Really! Really!" in the pitying tone one would use to a child. Indeed, they are children both--the one wizened and cantankerous, the other formidable and overbearing, yet each with a brain which has put him in the front rank of his scientific age. Brain, character, soul--only as one sees more of life does one understand how distinct is each.
The very next day we did actually make our start upon this remarkable expedition. We found that all our possessions fitted very easily into the two canoes, and we divided our personnel, six in each, taking the obvious precaution in the interests of peace of putting one Professor into each canoe. Personally, I was with Challenger, who was in a beatific humor, moving about as one in a silent ecstasy and beaming benevolence from every feature. I have had some experience of him in other moods, however, and shall be the less surprised when the thunderstorms suddenly come up amidst the sunshine. If it is impossible to be at your ease, it is equally impossible to be dull in his company, for one is always in a state of half-tremulous doubt as to what sudden turn his formidable temper may take.
For two days we made our way up a good-sized river some hundreds of yards broad, and dark in color, but transparent, so that one could usually see the bottom. The affluents of the Amazon are, half of them, of this nature, while the other half are whitish and opaque, the difference depending upon the class of country through which they have flowed. The dark indicate vegetable decay, while the others point to clayey soil. Twice we came across rapids, and in each case made a portage of half a mile or so to avoid them. The woods on either side were primeval, which are more easily penetrated than woods of the second growth, and we had no great difficulty in carrying our canoes through them. How shall I ever forget the solemn mystery of it? The height of the trees and the thickness of the boles exceeded anything which I in my town-bred life could have imagined, shooting upwards in magnificent columns until, at an enormous distance above our heads, we could dimly discern the spot where they threw out their side-branches into Gothic upward curves which coalesced to form one great matted roof of verdure, through which only an occasional golden ray of sunshine shot downwards to trace a thin dazzling line of light amidst the majestic obscurity. As we walked noiselessly amid the thick, soft carpet of decaying vegetation the hush fell upon our souls which comes upon us in the twilight of the Abbey, and even Professor Challenger's full-chested notes sank into a whisper. Alone, I should have been ignorant of the names of these giant growths, but our men of science pointed out the cedars, the great silk cotton trees, and the redwood trees, with all that profusion of various plants which has made this continent the chief supplier to the human race of those gifts of Nature which depend upon the vegetable world, while it is the most backward in those products which come from animal life. Vivid orchids and wonderful colored lichens smoldered upon the swarthy tree-trunks and where a wandering shaft of light fell full upon the golden allamanda, the scarlet star-clusters of the tacsonia, or the rich deep blue of ipomaea, the effect was as a dream of fairyland. In these great wastes of forest, life, which abhors darkness, struggles ever upwards to the light.