16 paper goods and printed matter; namely, brochures, pamphlets, magazines, catalogues, journals, manuals, texts, instructional and teaching materials, and compilations for use in the field of water pollution, research, and control
41 educational services; namely, providing courses of instruction, conducting seminars, distributing educational materials, and rendering consultation services therewith in the field of water pollution, research, and control
42 association services; namely, promoting public awareness and the interests of those in the water pollution, research, and control field, and related environmental issues