A mineralogist at Besançon had just sent us a collection of siliceous nodules, which I had to classify: so I set to work; I sorted, labelled, and arranged in their own glass case all these hollow specimens, in the cavity of each of which was a nest of little crystals.
Je me mis au travail. Je triai, j'étiquetai, je disposai dans leur vitrine toutes ces pierres creuses au-dedans desquelles s'agitaient de petits cristaux.