Page:The Case Book of Sherlock Holmes (1927).djvu/280



HERLOCK HOLMES had been bending for a long time over a low-power microscope. Now he straightened himself up and looked round at me in triumph.

“It is glue, Watson,” said he. “Unquestionably it is glue. Have a look at these scattered objects in the field!”

I stooped to the eyepiece and focused for my vision.

“Those hairs are threads from a tweed coat. The irregular grey masses are dust. There are epithelial scales on the left. Those brown blobs in the centre are undoubtedly glue.”

“Well,” I said, laughing, “I am prepared to take your word for it. Does anything depend upon it?”’

“It is a very fine demonstration,” he answered. “In the St. Pancras case you may remember that a cap was found beside the dead policeman. The accused man denies that it is his. But he is a picture-frame maker who habitually handles glue.”

“Is it one of your cases?”

“No; my friend, Merivale of the Yard, asked me to look into the case. Since I ran down that coiner by the zinc and copper filings in the seam of his cuff they have begun to realize the importance of the Rh