There are certainly at least two resins in the powder (which is known officially as Podophylli resina), one of them being soluble and the other insoluble in ether.
Resina, probably Latinized from Greek prpivri, resin), a secretion formed in special resin canals or passages of plants, from many of which, such as, for example, coniferous trees, it exudes in soft tears, hardening into solid masses in the air.
The work was begun in the autumn of 1908, but financial difficulties with property owners in Resina immediately arose with the result that progress was practically stopped.
From this flat, between the sea and the range of the Apennines, rises Mount Vesuvius, at the base of which, on or near the sea-shore, are the populous villages of San Giovanni Teduccio, Portici, Resina, Torre del Greco, Torre dell' Annunziata, &c., and the classic sites of Herculaneum and Pompeii.
Terebinthina, sc. resina, resin of the terebinth, Gr.
ROSIN (a later variant of "resin," q.v.) or Colophony (Colophonia resina, resin from Colophon in Lydia), the resinous constituent of the oleo-resin exuded by various species of pine, known in commerce as crude turpentine.
Porter Smith, op. cit., p. 162.) Common frankincense or thus, Abietis resina, is the term applied to a resin which exudes from fissures in the bark of the Norway spruce fir, Abies excelsa, D.C.; when melted in hot water and strained it constitutes " Burgundy pitch," Pix abietina.