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Show Pkuk. liAKitLT, in a receu". lecluie on the lit pht'Uf, ga'.e a receipt lor making a cheap one. Take a wooden rCKitb-pOU-.ler bux and mako a hole abuut. the .zi of halt-orowu iu thr; lid tut- iho liuttuui. Tuko a disc of tiuEietl iron, uoh as can ho bad from a preserved menl tin, and place it on tho out t! id i f it. 1 hen take a small bar-magnet, place ou one end a email oulton or Bilk rtal, and round the reel wind yoni iron wire, leaving the eutia liamo. I'x one end cf thu magnet iit-m', tie r."ar as poseiblu without totichirm, t u v and thou one piir. i.l Hit n lcplmno iu comp!eli. -i. -uui.ar tn h ngement 16 neidtd foi n. other end. i'he two are couiioeteii i, iho wirv, and will) this Prvf. Ba n-tt enys ho bad been able to couverrt; ut a distance of about 10J yardj. |