some refreshments. The murderer sat in the chair in which you are sitting, Brodski sat in that small arm-chair. Then I imagine the murderer attacked him with that iron bar that you found among the nettles, failed to kill him at the first stroke, struggled with him and finally suffocated him with the table-cloth. By the way, there is just one more point. You recognize this piece of string?" He took from his "collecting-box" the little end of twine that had been picked up by the line. The inspector nodded. "Look behind you, you will see where it came from."
The officer turned sharply and his eye lighted on a string-box on the mantelpiece. He lifted it down, and Thorndyke drew out from it a length of white twine with one green strand, which he compared with the piece in his hand. "The green strand in it makes the identification fairly certain," he said. "Of course the string was used to secure the umbrella and hand-bag. He could not have carried them in his hand, encumbered as he was with the corpse. But I expect our other specimen is ready now." He lifted the flask off the tripod, and, giving it a vigorous shake, examined the contents through his lens. The alcohol had now become dark-brown in colour, and was noticeably thicker and more syrupy in consistence.
"I think we have enough here for a rough test," said he, selecting a pipette and a slide from
