Read it through once

“I beg your pardon, Dr. Lanyon,” he replied civilly enough. “What you say is very well founded; and my impatience has shown its heels to my politeness. I come here at the instance of your colleague, Dr. Henry Jekyll, on a piece of business of some moment; and I understood...” He paused and put his hand to his throat, and I could see, in spite of his collected manner, that he was wrestling against the approaches of the hysteria—“I understood, a drawer...”