# Q31 · Universal Thursday inscription

Memorandum

All lamp moths arrive on Thursday. This was carved after the lamp went away. No census, controlled trial or earlier inscription accompanies it.

```json
{
  "source_type": "inscription",
  "claim": "all_arrivals_on_thursday",
  "independent_observations": 0
}
```

## Related records

- [Q29 · Orchard coverage inventory](/archive/quiet-index/r5/q29)
- [Q28 · Two orchard observation slips](/archive/quiet-index/r5/q28)
- [Q09 · Lamp moth note](/archive/quiet-index/r5/q09)

Canonical: /archive/quiet-index/r5/q31
Revision: quiet-index-r5. The margins keep count.