41 educational services, namely, conducting classes, courses, seminars, conferences, workshops, and distributing course materials in connection therewith relating to the field of life support systems and the environment; production of pre-recorded audio tapes, production and distribution of documentary films and slides, all relating to the field of life support systems and the environment; conducting competitions, conferences, conventions, and congresses, all relating to the field of life support systems and the environment; publishing services, namely, ublication of text and graphics for others on CD-ROMs, electronic, and print format, featuring topics related to life support systems and the environment