PORT JERVIS, NY — Gillinder Brothers, Inc. will hold a series of glass blowing demonstrations and glass factory tours this season. The first event, including guest artists Al Hough, Bill Happel, Professor Bernard and Charlie Gillinder, will be given on Saturday, May 7 at Gillinder Glass, located at the corners of Erie & Liberty Streets. Guided tours are given between 10 a.m. and 3 p.m. Tour rates are $4 for adults, $3.50 for seniors and children. Groups welcome. Call 845/ 856-5375.