STN would like to invite you to attend two free public training seminars in Cambridge. Both are tailored towards experienced chemistry searchers with knowledge of the Registry and CA files on STN, and will be presented by CAS patent/chemistry applications specialist Brenda Poulter. Friday 4th July 2003: 10.30-12.30 - Advanced substance searching techniques in Registry. This presentation covers techniques for identifying compounds using Registry tools such as Elemental Analysis, Ring Identifiers, and Ring Sequence/Element/Formula data, and CA Index Name information. Friday 4th July 2003: 1.30-3.00 - Advanced CA searching. This presentation will focus on the use of CA indexing in the construction of precise strategies to locate patent and journal literature of interest. If you would like to attend, please send an email to [log in to unmask] A limited number of places are available. Lunch is provided.