The Eye of Osiris · Chapter
XV: Circumstantial Evidence explained
Paul Berkeley visits Thorndyke to discuss the inquest and his notes.
What happens
Paul Berkeley visits Thorndyke to discuss the inquest and his notes. Thorndyke praises Paul's careful documentation of snail egg-patches on the bones, using them to deduce that the hand was separated from the arm before being placed in the pond. They discuss the unusual method of dismemberment, suggesting a deliberate anatomical division. Later, Paul meets Ruth Bellingham at the British Museum, where they encounter Mr. Jellicoe copying tombstone inscriptions.
Themes in this chapter
Forensic Science and Medicine
Thorndyke uses the position of snail egg-patches on bones to reconstruct the position of the arm and hand, demonstrating forensic deduction.
Mystery and Detection
The chapter focuses on interpreting circumstantial evidence from the bones, including the unusual method of dismemberment.
Death and Mortality
Discussions of tombstones, epitaphs, and the resurrection scene from anatomy dissections evoke themes of death and remembrance.
Characters to notice
- Paul Berkeley
Visits Thorndyke to discuss his inquest notes and later meets Ruth at the British Museum.
- John Thorndyke
Analyzes Paul's notes on the bones, deducing key details about the dismemberment.
- Ruth Bellingham
Spends the afternoon with Paul at the British Museum, discussing tombstones and family history.
- Arthur Jellicoe
Seen copying epitaphs in the churchyard near the Bellingham family tombstones.
- Polton
Handed Paul's notes to Heath for cross-examination at the inquest.
- Mr. Marchmont
Thorndyke mentions he has to consult with Marchmont.
Key passages
“There is not one man in twenty who would have had the sense to make a careful note of what he considers an unimportant or irrelevant fact; and the investigator who notes only those things that appear significant is perfectly useless.”
Thorndyke praises Paul for recording seemingly trivial details, emphasizing that a good investigator must note everything, not just what seems important.
Thorndyke's philosophy on observation and evidence collection.
“The arm was lying, fully extended, with the dorsal side uppermost. But we also learn from these egg-patches that the hand had been separated from the arm before it was thrown into the pond; and there is something very remarkable in that.”
From the egg-patches, Thorndyke deduces that the hand was detached from the arm before being placed in the water, which is anatomically significant.
Key forensic deduction from Paul's sketches.
“I think it is possible to conceive such circumstances, and so, probably, will you if you think it over.”
Thorndyke hints that Paul might deduce the motive for the unusual dismemberment method if he reflects on it.
Thorndyke's cryptic encouragement for Paul to reason further.