[Differential thermal analysis of the organic fraction of bone]. / Sur l'analyse thermique différentielle de la fraction organique de l'os.

Thermal decomposition analysis of Bovine femur bone has been carried out by means of a Micro Differential Thermal Analyser. The analysis of both thermograms and amino acid compositions has revealed the complexity of collagen degradation mechanisms.

[Mineralogy of calcium deposits observed on duodenal cannulae in dogs]. / Minéralogie de dépôts calciques observés sur canules duodénales chez le chien

Spontaneous precipitation of deposits on duodenal cannulae were observed in laboratory dogs. X ray diffraction study demonstrated that apatite was always present, while other calcium salts, such as gypsum and brushite, were sometimes present. Moreover another, not yet identified, crystalline substance was also documented.