Nettleton argues for expert sensory judgment where chemical analysis appears insufficient, while allowing that future chemistry may detect changes then unmeasured. The passage does not show that any particular mechanism is correct.
314
313
Analytical limits and expert authority; physical PDF 368–369
Paraphrase fidelity checked against selected locally OCR-read scanned passages; key pages 309, 313 and 532 visually checked. Verified does not mean historical or scientific assertions independently corroborated.
Nettleton argues for expert sensory judgment where chemical analysis appears insufficient, while allowing that future chemistry may detect changes then unmeasured. The passage does not show that any particular mechanism is correct.
