"Well, it is rather remarkable, but we have in India a small lizard, called the gecko by the natives, which is said to be equally venomous. I presume it must be the same animal, and it is singular that the names should vary so little. I have never seen an instance of its poisonous powers, but I have seen a whole company of sepoys run out of their quarters because they have heard the animal make its usual cry in the thatch of the building; they say that it drops down upon people from the roof."
"Probably the same animal; and a strong corroboration that the report of its being venomous is with good foundation."
"And yet if we were to make the assertion in England, we should in all probability not be believed."
"Not by many, I grant—not by those who only know a little; but by those who are well informed, you probably would be. The fact is, from a too ready credulity, we have now turned to almost a total skepticism, unless we have ocular demonstration. In the times of Marco Polo, Sir John Mandeville, and others,—say in the fifteenth century, when there were but few travelers and but little education, a traveler might assert almost any thing, and gain credence; latterly a traveler hardly dare assert any thing. Le Vaillant and Bruce, who traveled in the South and North of Africa, were both stigmatized as liars, when they published their accounts of what they had seen, and yet every tittle has since been proved to be correct. However, as people are now better informed, they do not reject so positively; for they have certain rules to guide them between the possible and the impossible."
"How do you mean?"
"I mean, for instance, that if a person was to tell me that he had seen a mermaid, with the body of a woman and the scaly tail of a fish, I should at once say that I could not believe him. And why? because it is contrary to the laws of nature. The two component parts of the animal could not be combined, as the upper portion would belong to the mammalia, and be a hot-blooded animal, the lower to a cold-blooded class of natural history. Such a junction would, therefore, be impossible. But there are, I have no doubt, many animals still undiscovered, or rather still unknown to Europeans, the description of which may at first excite suspicion, if not doubt. But as I have before observed, the account would, in all probability, not be rejected by a naturalist, although it might be by people without much knowledge of the animal kingdom, who would not be able to judge by comparison whether the existence of such an animal was credible. Even fabulous animals have had their origin from existing ones. The unicorn is, no doubt, the gemsbok antelope; for when you look at the animal at a distance, its two horns appear as if they were only one, and the Bushmen have so portrayed the animal in their caves. The dragon is also not exactly imaginary; for, the Lacerta volans, or flying lizard of Northern Africa, is very like a small dragon in miniature. So that even what has been considered as fabulous has arisen from exaggeration or mistake."
"You think, then, Swinton, that we are bound to believe all that travelers tell us?"
"Not so; but not to reject what they assert, merely because it does not correspond with our own ideas on the subject. The most remarkable instance of unbelief was relative to the aerolites or meteoric stones formed during a thunder-storm in the air, and falling to the earth. Of course you have heard that such have occurred?"
"I have," replied the Major, "and I have seen several in India."
"This was treated as a mere fable not a century back; and when it was reported (and not the first time) that such a stone had fallen in France, the savans were sent in deputation to the spot. They heard the testimony of the witnesses that a loud noise was heard in the air; that they looked up and beheld an opaque body descending; that it fell on the earth with a force which nearly buried it in the ground, and was so hot at the time that it could not be touched with the hand. It afterward became cold. Now the savans heard all this, and pronounced that it could not be; and for a long while every report of the kind was treated with contempt. Now every one knows, and every one is fully satisfied of the fact, and not the least surprise is expressed when they are told of the circumstance. As Shakespeare makes Hamlet observe very truly—'There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.'"