Historical clue formulations

• Scratch-and-sniff samples — 2026-06-07
• Aromas — 2025-09-16
• Perfumery assortment — 2024-08-24
• Things picked up on a trail — 2021-12-24
• They may be picked up by dogs — 2014-10-18
• Dogs often pick them up — 2009-08-14
• Perfumery emanations — 2009-05-11
• Trackers' aids — 2008-10-03
• Things that are picked up — 2006-12-30
• Things found by hounds — 2006-12-09
• Perfumes — 2002-08-26
• Trackers' clues — 2002-02-24
• Sachet emanations — 1999-02-21
• Tracks, of a sort — 1998-07-17
• Gets wind of — 1995-07-14
• Atomizers' contents — 1994-10-15
• Hounds' leads — 1994-09-24
• Lily and rose, e.g. — 1994-07-23