Image Missing: Hearst Museum object titled Fireplow hearth, museum number 11-14990a,b, described as a) Fire plow hearth (ïnanïth); hibiscus wood; ends sawed flat; use groove (made in technology class); 75 x 4.5 cm. b) Fire plow stick (naïnïth) ; 20 x 2 cm. Used in conjunction in fire making by friction; made of discarded hibiscus carrying pole. Little used after European contact but revived during WWII due to match shortage.