The engineer, aided by his companions, including Pencroft, who was once more obliged to leave his boat, commenced the preliminary operations, the subject of which was to rid the wool of that fat and oily substance with which it is impregnated, and which is called grease.
El ingeniero, ayudado por sus compañeros, incluido Pencroff, que otra vez tuvo que abandonar su construcción naval, comenzó las operaciones preliminares que tuvieron por objeto quitar la sustancia oleosa y grasa impregnada en la lona, que se llama churre.