1. Formation and Differentiation of Avian Somite Derivatives........ 1 Bodo Christ and Martin Scaal Abstract................ 1 Introduction ................. 1 Dermomyotome................ 2 Sclerotome................. 14 Outlook............. 29 2. Avian Somitogenesis: Translating Time and Space into Pa ttern.......... 42 Beate Brand-Saberi, Stefan Rudloff and Anton J. Gamel Abstract............. 42 Introduction.............. 42 Epithelialization...