assisted me while I was preparing this little book. As on previous occasions, I have again had the privilege of frequently consulting Mr. Adolphus Patera, head librarian of the Bohemian Museum. Dr. Matejka, guardian of the print room of that museum, has most kindly permitted the reproduction of some of the treasures contained in that collection. Dr. Jaromir Celakovsky, archivist of the town of Prague, kindly granted permission that the interesting old town seals of Prague should be reproduced here. Monsignor Lehner kindly furnished me with some fresh information on the subject of early Bohemian ecclesiastical architecture, on which he is so great an authority. Dr. Zahradnik, canon and librarian of the Strahov Monastery, has given me much valuable information concerning his ancient monastery, and particularly concerning the library that he so ably and skilfully directs. I have also had the privilege of receiving advice from Professors Kalousek and Mourek.
Prague, November 28, 1901.
