This is an almost exhaustive study of the lord's supper in Geneva, mainly during the time of John Calvin, but also venturing into seventeenth-century developments. The publisher's generosity on length has meant that the author has been able to place the communion rite in a wider ecclesiastical and catechetical setting than would otherwise have been possible. An introduction traces the history of the study of rituals from the perspective of ritual studies and anthropologists, though most of the subsequent work seems to be historical and theological, and quite detached from the introduction. That said, Grosse describes the initial assault on the Roman Catholic cultus which brought Geneva to a Protestant reform. The genesis of La Forme des prières ecclésiastiques receives excellent treatment, noting some minor revisions of certain prayers and formulae. The celebration and rules of discipline for the lord's supper are fully investigated, as well as the reasons for exclusion, both of matters of faith, and of morals. In this respect the Decalogue, which formed part of the Sunday service, played an important liturgical, ecclesial and social function, as did the recitation of the Creed. Tables analysing the exclusions and the work of the Consistory are provided. Grosse thus notes that in Geneva, the lord's supper was the meal of reconciliation. A final chapter looks at the ‘mutation’ of the ritual system of the supper, particularly with regard to discipline and the occasions of the celebration that occurred in the later sixteenth and early seventeenth centuries, with a glance at the 1743 revision. A fully noted critical text of the Sunday service and lord's supper is included in the appendices. This is a timely revisiting of the liturgy of Geneva that Calvin evolved. Yet there are some gaps. The importance of the singing of Psalms is discussed, but there is no reference to the important work by Catherine Reuben on Marot's translations. Missing also is the supposed patristic background of the Reformed rites – fully discussed by H. O. Old in his study of 1975. Other notable English discussions are absent from the bibliography, including my work of 1984; and A. C. Honder's edition of Poullain's Liturgia Sacra seems to have been missed. This apart, Reformation and liturgical scholars are indebted to the author for this study which does for Geneva what René Bornert had done for the worship at Strasbourg.