COMMISSION REGULATION (EEC) No 1974/93 of 22 July 1993 adjusting certain aid amounts provided for in Council Regulations (EEC) No 1600/92 and (EEC) No 1601/92 concerning specific measures for the Azores and Madeira and for the Canary Islands with regard to certain agricultural products in application of the automatic dismantling of negative monetary gaps pursuant to Council Regulation (EEC) No 3813/92