 It's the season of high spirits and festive decorations. To enjoy it all, be certain your Christmas tree is beautiful and safe. If you buy a natural tree, make sure it's fresh. There should be no brittle branches, no shedding needles. Put your tree in a steady holder filled with water and keep all trees natural and artificial away from heat sources. Check lights for frayed wires, loose connections, broken or cracked sockets. Always unplug tree lights before you go out or to bed. Never leave a lighted tree alone. Choose decorations with care too. Make sure all your trimmings are non-combustible or flame resistant. And be prepared to act fast should a fire emergency develop. Your local fire emergency number is on the inside front cover of the telephone directory. Keep it handy near the phone. Then have a happy, safe holiday season.