Abstract: There is an ice fishing rig and a kit for the same. The rig is selectively adjustable between `tip-up` and `rod-and reel` configurations. The kit comprises a handle, an elongated reel securable to the handle, and a rod selectively securable to the handle in a forwardly projecting position or a rearwardly projecting position. The rod includes a fishing line guide, eg. a hole. There is also means cooperative with the handle for selectively supporting the rig in the `tip-up` configuration over an ice fishing hole. The latter means preferably includes a pair of rods, each having a length greater than a width of a typical ice fishing hole. Preferably the rig also includes a spring indicator cooperatively adapted to alert an fisherman when a fish pulls on a fishing line extending from the rig operatively in the `tip-up` position.

Abstract: A feeder for poultry comprising a feed tray, a feed supply stack secured on the tray and audio conveying means to facilitate dispersion of feeding behavior enhancing sounds from the stack a feeding period.

Abstract: A method of extracting hydrocarbons in situ from an underground hydrocarbon deposit (such as petroleum or lignite). A selected part of the deposit is heated by electrical induction to temperatures high enough to drive off hydrocarbon fractions as gases or vapors, which are then collected. The deposit may be heated through a coking and cracking stage. The electrical induction heating is conveniently effected by passing alternating current through a conductive path encompassing that part of the deposit to be heated.