"Now do I care what things or people do in England?" demanded the Purple Emperor.

"You don't care for anything except yourself and your wriggling caterpillars," I said, more annoyed than I had yet been.

The Purple Emperor sniffed. His broad, hairless, sunburnt features bore that obstinate expression which always irritated me. Perhaps the manner in which he wore his hat intensified the irritation, for the flapping brim rested on both ears, and the two little velvet ribbons which hung from the silver buckle in front wiggled and fluttered with every trivial breeze. His cunning eyes and sharp-pointed nose were out of all keeping with his fat red face. When he met my eye, he chuckled.

"I know more about insects than any man in Morbihan—or Finistère either, for that matter," he said.

"The Red Admiral knows as much as you do," I retorted.

"He doesn't," replied the Purple Emperor angrily.

"And his collection of butterflies is twice as large as yours," I added, moving down the stream to a spot directly opposite him.

"It is, is it?" sneered the Purple Emperor. "Well, let me tell you, Monsieur Darrel, in all his collection he hasn't a specimen, a single specimen, of that magnificent butterfly, Apatura Iris, commonly known as the 'Purple Emperor.'"

"Everybody in Brittany knows that," I said, casting across the sparkling water; "but just because you happen to be the only man who ever captured a 'Purple Emperor' in Morbihan, it doesn't follow that you are an authority on sea-trout flies. Why do you say that a Breton sea-trout won't touch a tailed fly?"

"It's so," he replied.