Pix betulina
Pix betulina est materies e destillatione corticis arborum facta generis Betulae. E speciebus huius generis, in Europa praecipue e specie Betula pendula, homines Neanderthalenses picem ignis ope extraxisse censentur ad tela conficienda.

Notae

Bibliographia 
 P. R. B. Kozowyk, M. Soressi, D. Pomstra, G. H. J. Langejans, "Experimental methods for the Palaeolithic dry distillation of birch bark: implications for the origin and development of Neandertal adhesive technology" in Scientific Reports vol. 7 no. 8033 (31 Augusti 2017)
 Nicholas St. Fleur, "Starting Fires to Unearth How Neanderthals Made Glue" in New York Times: Trilobites (7 Septembris 2017)

Nexus externi 
 "How Neanderthals made the very first glue" (31 Augusti 2017) apud Phys.org

Materies
Betulaceae
Homo neanderthalensis
Res naturales hominibus utiles