Abstract
Peter Elmsley once said ‘difficillimum opus esse accuratam librorum collationem’. He was pointing out some mistakes in Porson's collation of the editio princeps of the four plays of Euripides, which Porson had said that he himself had collated ‘summa cum religione, ne dicam superstitione’. These were both men who knew Greek and who could collate manuscripts. So we ν;θρωπσκοι who would follow in their footsteps in this most difficult task cannot expect to do more than increase in some small measure the accuracy and completeness of existing collations. It is to be hoped that others in their turn may in due course improve on our work also, so that finally, with sufficient workers in the field, a close approximation to truth may be achieved.