I am an Earth Science teacher at Thomas Jefferson High School.  For the past 17 years I have taken a group of 55 students to Mt. St. Helens to take in the opportunity to learn beyond the classroom.  This year the trip is in danger.  The only real expense is the bus but that grows greater every year.  I usually divide the expense by the students but I do not like to leave out the student that can not afford it.  This is my Hail Mary... If I can collect most of the expense of the bus by April, I can make it happen one more year.  Please help!