JEDDAH, 21 February — The second Saudi conference on volunteer work will be held in Riyadh in April to highlight the scientific and social achievements in the area. Sponsored by the Saudi Red Crescent Society, the Directorate General of Civil Defense, Riyadh Chamber of Commerce and Industry and Prince Salman Center for the Disability Research, the conference will be opened by Prince Naif, the minister of interior.  Representatives from the Kingdom and abroad will present papers on various topics related to disability and propose solutions, said Dr. Abdul Rahman Al-Swailem, chairman of the conference supervising committee. (AN)