Sherlock Holmes was camping with Dr. Watson... ...and Mr. Holmes turned to his assistant: Tell me, Watson, what do you see? Watson was puzzled by the remark, but he looked up and said, ""Stars. Millions and millions of them."" Holmes responded: ""I agree. And Dr. Watson, certainly you have picked up on many of my techniques of deduction. Can you deduce something from what you see here?"" Dr. Watson looked at Mr. Holmes and said, ""Well, I'm not as good as you are, by any stretch, but why not. I …

Holmes is on the case... Sherlock Holmes is investigating a murder where the culprit had used a knife carved from Sandstone. Dr. Watson finds the choice of murder weapon odd. ""Holmes, who would kill another man with an Igneous rock?"" ""Sedimentary, my dear Watson, Sedimentary...""

SHERLOCK HOLMES WAS CAMPING WITH DR. WATSON Sherlock Holmes was camping with Dr. Watson… …and Mr. Holmes turned to his assistant: Tell me, Watson, what do you see? Watson was puzzled by the remark, but he looked up and said, “Stars. Millions and millions of them.” Holmes responded: “I agree. And Dr. Watson, certainly you have picked up on many of my techniques of deduction. Can you deduce something from what you see here?” Dr. Watson looked at Mr. Holmes and said, “Well, I’m not as good as …

Holmes and Watson were investigating a murder at an archaeological dig-site Holmes picks up several of the rocks and pebbles surrounding the murder victim. After a while, Holmes turns to his companion and says "I've cracked the case. The suspect was clearly murdered with a blow to the head by a rock, which then crumbled and scattered into pieces." "How on Earth can you tell?" exclaims Watson. "It's sedimentary, my dear Watson."