This book was published by the University of Florida in 1965 on the occasion of the 400th anniversary of the first successful settlement in Florida by the Spanish. It filled numerous gaps in my understanding the history of Catholicism in Florida in several key areas. First, the Patronato Real or Royal Patronage of the Spanish Crown insured that missionaries would accompany every attempt at settlement with the intention of carrying out the Crown's stated desire that native populations should be proselytized in the Roman Catholic Faith. Second, the success of the Order of Friars Minor--the Franciscans--in accomplishing that mission over two centuries of unceasing effort was a success story unrivaled except, perhaps, in the Jesuit reductions of Argentina and Paraguay. Third, all of those achievements were wiped out in the late 17th century by raids on the native Christians and their priests, incursions by English colonials led by James Moore, a governor of the Carolinas. Moore's slaughter of tens of thousands of native Americans and their missionaries is a dark chapter of American history that is not well known. Finally, every time that Florida changed hands, which was frequently, the number of Catholics in Florida generally dropped to zero, and the whole Catholic missionary endeavor would need to be restarted. The last chapters, which were out the purview of my research, were actually the most interesting, and the author's annotated bibliography was both helpful and interesting. Anyone who is interested in the history of Florida would be delighted with this book.