His gaze, however, was arrested for a moment where the lump under Brown's tunic indicated something concealed—a hunting knife, for example. Brown's automatic was strapped there. But the bulging eyes, expressionless still, remained fixed for a second only, then travelled on toward the Ross rifle—the Athabasca Regiment having been permitted to exchange this beloved weapon for the British regulation piece recently issued to the Can[pg 50]adians. From behind the thick lenses of his spectacles the Herr Professor examined the rifle while his monotonously dreary voice continued an entomological monologue for Brown's edification. And all the while Von Glahn and Stent, reclining nearby among the ferns, were exchanging what appeared to be the frankest of confidences and the happiest of youthful reminiscences.
"Of the Parnassians," rumbled on Professor von Dresslin, "here in the Alps we possess one notable example—namely, the Parnassus Apollo. It is for the capture of this never-to-be-sufficiently studied butterfly that I have, upon this ibex-hunting expedition, myself equipped with net and suitable paraphernalia."
"I see," nodded Brown, eyeing the green tin box and the net. The Herr Professor's pop-eyed attention was now occupied with the service puttees worn by Brown. A sportsman also might have worn them, of course.
"The Apollo butterfly," droned on Professor Dresslin, "iss a butterfly of the larger magnitude among European Lepidoptera, yet not of the largest. The Parnassians, allied to the[pg 51] Papilionidæ, all live only in high altitudes, and are, by the thinly scaled and always-to-be-remembered red and plack ge-spotted wings, to be readily recognized. I haf already two specimens captured this morning. I haff the honour, sir, to exhibit them for your inspection——"
He fished out a flat green box from his pocket, opened it under Brown's nose, leaning close enough to touch Brown with an exploring and furtive elbow—and felt the contour of the automatic.
Amid a smell of carbolic and camphor cones Brown beheld, pinned side by side upon the cork-lined interior of the box, two curiously pretty butterflies.
Their drooping and still pliable wings seemed as thin as white tissue paper; their bodies were covered with furry hairs. Brick-red and black spots decorated the frail membrane of the wings in a curiously pleasing harmony of pattern and of colour.
"Very unusual," he said, with a vague idea he was saying the wrong thing.
Monotonously, paying no attention, Professor[pg 52] von Dresslin continued: "I, the life history of the Parnassus Apollo, haff from my early youth investigated with minuteness, diligence, and patience."—His protuberant eyes were now fixed on Brown's rifle again.—"For many years I haff bred this Apollo butterfly from the egg, from the caterpillar, from the chrysalis. I have the negroid forms, the albino forms, the dwarf forms, the hybrid forms investigated under effery climatic condition. Notes sufficient for three volumes of quarto already exist as a residuum of my investigations——"
He looked up suddenly into the American's face—which was the first sudden movement the Herr Professor had made——