“You carry a pistol, Doctor, why didn’t you use it?” said the half inattentive girl, anxiously examining the prairie, but still lingering where she stood, quite willing to be detained.

“Ay, but it carries nothing but the most minute particles of lead, adapted to the destruction of the larger insects and reptiles. No, I did better than to attempt waging a war, in which I could not be the victor. I recorded the event; noting each particular with the precision necessary to science. You shall hear, Ellen; for you are a good and improving girl, and by retaining what you learn in this way, may yet be of great service to learning, should any accident occur to me. Indeed, my worthy Ellen, mine is a pursuit, which has its dangers as well as that of the warrior. This very night,” he continued, glancing his eye behind him, “this awful night, has the principle of life, itself, been in great danger of extinction!”

“By what?”

“By the monster I have discovered. It approached me often, and ever as I receded, it continued to advance. I believe nothing but the little lamp, I carried, was my protector. I kept it between us, whilst I wrote, making it serve the double purpose of luminary and shield. But you shall hear the character of the beast, and you may then judge of the risks we promoters of science run in behalf of mankind.”

The naturalist raised his tablets to the heavens, and disposed himself to read as well as he could, by the dim light they yet shed upon the plain; premising with saying—

“Listen, girl, and you shall hear, with what a treasure it has been my happy lot to enrich the pages of natural history!”

“Is it then a creature of your forming?” said Ellen, turning away from her fruitless examination, with a sudden lighting of her sprightly blue eyes, that showed she knew how to play with the foible of her learned companion.

“Is the power to give life to inanimate matter the gift of man? I would it were! You should speedily see a Historia Naturalis Americana, that would put the sneering imitators of the Frenchman, De Buffon, to shame! A great improvement might be made in the formation of all quadrupeds; especially those in which velocity is a virtue. Two of the inferior limbs should be on the principle of the lever; wheels, perhaps, as they are now formed; though I have not yet determined whether the improvement might be better applied to the anterior or posterior members, inasmuch as I am yet to learn whether dragging or shoving requires the greatest muscular exertion. A natural exudation of the animal might assist in overcoming the friction, and a powerful momentum be obtained. But all this is hopeless—at least for the present!”—he added, raising his tablets again to the light, and reading aloud; “Oct. 6, 1805, that’s merely the date, which I dare say you know better than I—mem. Quadruped; seen by star-light, and by the aid of a pocket-lamp, in the prairies of North America— see Journal for Latitude and Meridian. Genus— unknown; therefore named after the discoverer, and from the happy coincidence of being seen in the evening —Vespertilio Horribilis, Americanus. Dimensions (by estimation)—Greatest length, eleven feet; height, six feet; head, erect; nostrils, expansive; eyes, expressive and fierce; teeth, serrated and abundant; tail, horizontal, waving, and slightly feline; feet, large and hairy; talons, long, curvated, dangerous; ears, inconspicuous; horns, elongated, diverging, and formidable; colour, plumbeous-ashy with fiery spots; voice, sonorous, martial, and appalling; habits, gregarious, carnivorous, fierce, and fearless. There,” exclaimed Obed, when he had ended this sententious but comprehensive description, “there is an animal, which will be likely to dispute with the lion his title to be called the king of the beasts!”

“I know not the meaning of all you have said, Doctor Battius,” returned the quick-witted girl, who understood the weakness of the philosopher, and often indulged him with a title he loved so well to hear; “but I shall think it dangerous to venture far from the camp, if such monsters are prowling over the prairies.”

“You may well call it prowling,” returned the naturalist, nestling still closer to her side, and dropping his voice to such low and undignified tones of confidence, as conveyed a meaning still more pointed than he had intended. “I have never before experienced such a trial of the nervous system; there was a moment,