To the Catholic Clergy the title Peregrinus Gasolinus is too well known to need explanation. The adventures and discussions of 'The Liturgiologist' and 'The Antiquary' have been the outstanding popular features of the Acolyte since its inception. The best of these have been gathered into book form, and furnish a readable treatise on the more common ceremonial practices of the church. Wherever priests gather the words Peregrinus Gasolinus are familiar. In England one hears of the petrol pilgrim and the reputation of the new scoot is proverbial. A mingling of erudite scholarship and quaint and homely humor makes this book one of the worth while publications of the year.