“I know what I have learned from your work upon the coleoptera, Sir Thomas,” I answered.

“Give me the names of the better-known species of the British scarabaei,” said he.

I had not expected an examination, but fortunately I was ready for one.  My answers seemed to please him, for his stern features relaxed.

“You appear to have read my book with some profit, sir,” said he.  “It is a rare thing for me to meet anyone who takes an intelligent interest in such matters.  People can find time for such trivialities as sport or society, and yet the beetles are overlooked.  I can assure you that the greater part of the idiots in this part of the country are unaware that I have ever written a book at all—­I, the first man who ever described the true function of the elytra.  I am glad to see you, sir, and I have no doubt that I can show you some specimens which will interest you.”  He stepped into the fly and drove up with us to the house, expounding to me as we went some recent researches which he had made into the anatomy of the lady-bird.

I have said that Sir Thomas Rossiter wore a large hat drawn down over his brows.  As he entered the hall he uncovered himself, and I was at once aware of a singular characteristic which the hat had concealed.  His forehead, which was naturally high, and higher still on account of receding hair, was in a continual state of movement.  Some nervous weakness kept the muscles in a constant spasm, which sometimes produced a mere twitching and sometimes a curious rotary movement unlike anything which I had ever seen before.  It was strikingly visible as he turned towards us after entering the study, and seemed the more singular from the contrast with the hard, steady, grey eyes which looked out from underneath those palpitating brows.

“I am sorry,” said he, “that Lady Rossiter is not here to help me to welcome you.  By the way, Charles, did Evelyn say anything about the date of her return?”

“She wished to stay in town for a few more days,” said Lord Linchmere.  “You know how ladies’ social duties accumulate if they have been for some time in the country.  My sister has many old friends in London at present.”

“Well, she is her own mistress, and I should not wish to alter her plans, but I shall be glad when I see her again.  It is very lonely here without her company.”

“I was afraid that you might find it so, and that was partly why I ran down.  My young friend, Dr. Hamilton, is so much interested in the subject which you have made your own, that I thought you would not mind his accompanying me.”

“I lead a retired life, Dr. Hamilton, and my aversion to strangers grows upon me,” said our host.  “I have sometimes thought that my nerves are not so good as they were.  My travels in search of beetles in my younger days took me into many malarious and unhealthy places.  But a brother coleopterist like yourself is always a welcome guest, and I shall be delighted if you will look over my collection, which I think that I may without exaggeration describe as the best in Europe.”