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similar to operating conditions in your own engirie, the weak, wavering and wasteful spark of old spark plugs in comparison with the hot, full spark of new plugs. You can determine for'yourself ýwhetheri stme for a new set. Lt is.an interesting and'conclusive comparative ýtest clearly visuallizlng w hy and when*you.need new spark plugs.. WE CARRY A COMPLETE STOCK OJP GOODYEAR TIRES & TUBES Wilinette: fBatte r' &Eleerie rServe '740, Twellth Steet Phone Wilmette 691-696 DON'T GAMBLE WHa GALI There are many grades of coal. Two lumps which look alike may be quite differentin quality, in heat units, in the'quantity.of. smoke and ash they produce.. These differences corne out. only in the burning. Why gamble when you buy coal ? It is so easy to'be sure. Consumers Coal is bought on a rigid test basis and every ton is, sold with an unconditional guarantee of high quality, honest wé'ight' and customer satisfaction. IT MUST SATISFY YOU OR WE' REMOVE IT AND REFUND YOUR MONEY. 'You take no chances when you buy GUARANTEED COAL. FUEL OIL., SOLVAY COK D-EL 1I.V ERÉ .OAL E @psumers ompany Y-ARD S A LL OV ER T HE NO0R TH WILMETTE 1300l WINNETKA 3385 -GLEN COE. i5 S HO ýR:E DI.STRICT Phil H. Braun L. Uraim co. Tlephones Winnetka 30201 Wfmette 831 I Phà H. Braun L. Brmm,.