226 REVIEWS. instance are these quoted as overlapping, although Prodlor also registered one of those in Hain and one of Copinger's. If twenty-six out of twenty- eight copies are really unique it is indeed amazing, though the Conjuratio is the sort of book of which editions easily tend to be represented by very few copies. The record of the Divisiones decem nationum totius christianitatis, a book of which there is no copy in the British Museum and of which we had never heard, is very similar. Here of twenty-three editions registered only one bears place or date, and of not more than three editions is more than a single copy known. Probably some of these entries are ghosts, a remark which reminds us of our doubts whether there is not something wrong as to the editions of the Summa angelica attributed to Venice 1476 and 1485. The author was abbot of a monastery at Chivasso, and from the date of the appearance of the Chivasso edition of 1486 there is a stream of reprints, two in each of the years 1487-91, and as many as five in 1492. The 1485 edition is vouched for by the German Commission, and a Venice publisher may have forestalled the first authorised text, as a Cologne publisher seems to have forestalled the first authorised edition of the Fasciculus Temporum. But an edition of 1475 seems incredible. It is good, however, to have all these references brought together, and Mr. Peddie has done his editing in a very workmanlike manner.