 Unfortunately the controversy occasioned by several of Guéranger's writings had the effect of drawing his attention to secondary questions and turning it away from the great enterprises of ecclesiastical science, in which he always manifested a lively concern.The result was a work in which polemics figured prominently, and which now evokes only mediocre interest, and, although the time spent upon it was by no means lost to the cause of the Church, Guéranger's historical and liturgical pursuits suffered in consequence.He devoted himself too largely to personal impressions and neglected detailed and persevering investigation.