The first version simply rearranged drawings. What would either classification allow a naturalist to predict about a specimen that has not yet been tested?
Fracture and afterglow measurements were added, including exceptions.FIGURE STUDY · 2121*
Plate XIV: the Delta collection
Six invented specimens are grouped first by shape, then by their response to light. The classifications suggest different experiments. Fracture and afterglow were recorded separately.
Sort the specimens by
Plate XIV / Delta collectionSpecimen Office, Delta Survey
Coiled
Branching
TEST
Fracture stability
The coiled specimens are expected to resist breakage. Black loop breaks; Stone plume, despite being branched, remains stable.
Using these six constructed records, shape predicts fracture stability in four cases; light response predicts afterglow duration in five. They are different tests. Neither classification has been tested on additional specimens.
Notes on the plate
Try an unseen specimen
All six cases were invented for the plate, including the supposed test results. A seventh specimen, selected without knowing its outcomes, would be needed before comparing the classifications.
Kept the plate as a demonstration and set aside the proposed biological conclusions.