No. 749 Lausanne, 7 May 1993 CONCERNING: Review by IUCN of Proposals to Amend CITES Appendices I and II 1.The Secretariat is pleased to send to the Parties the attached letter from the Director General of IUCN, which is self explanatory. 2.The Secretariat takes this opportunity to thank IUCN for all the work that it has done in the past to provide scientific information and advice regarding proposed amendments to Appendices I and II. 3.The Secretariat urges the Parties to thoroughly consider the questionnaire attached to the IUCN Director General's letter and to answer it as soon as possible, preferably before 30 May 1993.