Abstract: Composition for impregnating porous materials, in which the composition contains at lease one component having preservative properties or which release a component having preservative properties on heating, the composition comprising an emulsion of water and oil containing a primary surfactant and an amphoteric additive, the pH of the emulsion being equal or approximately equal to the iso-electric point of the amphoteric additive. The compositions of the invention are particularly useful in the preservation of timber.

Abstract: An improved fishhook comprises a hook-carrying member and a line-carrying member pivotally joined for relative movement therebetween. The hook-carrying member is provided with an elongated shank for engagement with a releasing handle for enabling the freeing of the fishhook from a fish caught thereon. Release is effected by maintaining the line-carrying member in a substantially vertical position and using the releasing handle as a lever to provide a mechanical advantage as it is moved through a pivotal traverse. The movement of the handle is translated to the hook-carrying member to enable release of the fish from engagement with the fishhook.