Thumbographs are little books that people in England used, in the early 1900s, to collect thumbprints from friends, from people they admired, and from anyone else whose thumbprints they wanted to collect. Thumbographs play a role in Austin Freeman’s detective novel The Red Thumb Mark, which introduced the world to Freeman’s fictional detective/physician/lawyer John Thorndyke. […]

The research that’s on everyone’s lips: Lip prints

They are on everyone’s lips always, and sometimes on a shred of evidence in a murder trial, and occasionally in the title of a scientific report. Lip prints have become the subject of formal study. That formal study has a formal name: cheiloscopy. Basic questions still nag at cheiloscopists. A Portuguese population lip print patterns […]