This report, the sixth in a series of working papers issued by the Project on Applied Contrastive Linguistics (PAKS) at the University of Stuttgart, contains theoretical and practical discussions relevant to contrastive linguistics in general and to German-English contrastive linguistics in particular. Papers are: Karl Heinz Wagner, "The Relevance of the Notion 'Deep Structure' to Contrastive Analysis"; Ekkehard Konig, "Transformational Grammar and Contrastive Analysis"; Gunter Rohdenburg, "Zur Oberflachenaufspaltung komplexer Nominalphrasen im Deutschen und Englischen [On the Surface Parsing of Complex Nominal Phrases in German and English]"; Roger L. Snook, "A Linear Programme for Teaching Temporal 'By' and 'Until' to Advanced German Learners"; Gunter Rohdenburg, "Zum personlichen Subjekt im Englischen; Versuch der Widerlegung und Relativierung einer traditionellen Vorstellung [On the Personal Subject in English: An Attempt to Refute and Adjust a Traditional Interpretation]; and Gunter Rohdenburg, "Kritische Betrachtungen zu Arbeiten von Fries, B. Hall und Halliday unter besonderer Berucksichtigung der Oberflachenaufspaltung komplexer Nominalphrasen im Englischen [Critical Observations on the Work of Fries, B. Hall and Halliday with Special Regard to the Surface Parsing of Complex English Nominal Phrases]." (FWB)