Glenarvan expressed his surprise at this circumstance, and wondered what could be the cause of it. Paganel, who was never at a loss for an answer, immediately replied:
“What astonishes me is not the caprice of nature. She knows what she is about, but botanists don’t always know what they are saying. Nature made no mistake in giving this peculiar foliage to the tree, but men have erred in calling them EUCALYPTUS.”
“What does the word mean?” asked Mary Grant.
“It comes from a Greek word, meaning I cover well. They took care to commit the mistake in Greek, that it might not be so self-evident, for anyone can see that the ecualyptus covers badly.”
“I agree with you there,” said Glenarvan; “but now tell us, Paganel, how it is that the leaves grow in this fashion?”
“From a purely physical cause, friends,” said Paganel, “and one that you will easily understand. In this country where the air is dry and rain seldom falls, and the ground is parched, the trees have no need of wind or sun. Moisture lacking, sap is lacking also. Hence these narrow leaves, which seek to defend themselves against the light, and prevent too great evaporation. This is why they present the profile and not the face to the sun’s rays. There is nothing more intelligent than a leaf.”
“And nothing more selfish,” added the Major. “These only thought of themselves, and not at all of travelers.”
Everyone inclined to the opinion of McNabbs except Paganel, who congratulated himself on walking under shadeless trees, though all the time he was wiping the perspiration from his forehead. However, this disposition of foliage was certainly to be regretted, for the journey through the forest was often long and painful, as the traveler had no protection whatever against the sun’s fierce rays.
The whole of this day the wagon continued to roll along through interminable rows of eucalyptus, without meeting either quadruped or native. A few cockatoos lived in the tops of the trees, but at such a height they could scarcely be distinguished, and their noisy chatter was changed into an imperceptible murmur. Occasionally a swarm of par-roquets flew along a distant path, and lighted it up for an instant with gay colors; but otherwise, solemn silence reigned in this vast green temple, and the tramp of the horses, a few words exchanged with each other by the riders, the grinding noise of the wheels, and from time to time a cry from Ayrton to stir up his lazy team, were the only sounds which disturbed this immense solitude.
When night came they camped at the foot of some eucalyptus, which bore marks of a comparatively recent fire. They looked like tall factory chimneys, for the flame had completely hollowed them out their whole length. With the thick bark still covering them, they looked none the worse. However, this bad habit of squatters or natives will end in the destruction of these magnificent trees, and they will disappear like the cedars of Lebanon, those world monuments burnt by unlucky camp fires.