Next in number below the biographical histories, but far above them in value, come what may be called the chronological histories, that is, those which make little or no attempt to group the important facts of a city's history in homogeneous chapters, but which, diary-like, give all facts, important as well as insignificant, in the order of their occurrence. Fortunately most local historians of this sect have made more or less attempt at bringing like to like, although they have generally preserved the purely chronological order within their groups, whether these be of subjects or periods. Among the histories of the larger cities, Scharf's Chronicles of Baltimore comes to mind as typical of this class. This work, published in 1874, is an octavo of seven hundred and fifty-six pages. The author tells the truth when he says in his preface: "The only plan in the work that has been followed has been to chronicle events through the years in their order; beginning with the earliest in which any knowledge on the subject is embraced, and running on down to the present." The book is printed "solid," with not a single chapter-heading from one end to the other, so it is not strange that it contains such an immense amount of material. The great fault of this book, as of all books of this class, is the lack of the proper classification, the scholarly reflection and comment, the thoughtful contrast and comparison, the exercise of intelligent judgment in forming conclusions,--all which are necessary to make history palatable, not to say valuable. Nowhere is this lack shown more forcibly than in this book in the treatment of the subject of riots and mob violence. It may not be generally known, especially among the younger portion of the community, that no American and but few European cities have such an unenviable and disgraceful record on this head as Baltimore. The accounts of its riots remind one too forcibly of the worst days of the French Revolution, and all of them read more like the incidents so plentiful in the sensational stories of the day, than like the cold, dispassionate record of history. And this, mind you, is the record of a city famed far more for monuments, pleasure-grounds, and beautiful women, than for lawlessness and sans-culottism, a city proud of its families and its culture, a city one of the oldest and richest in the land. However unpleasant it may be to look at the black side of such a city's history, yet the study must be profitable if by it we Americans, proud of our tolerance and our humanity, jealous of aught past or present that may blot our escutcheon, wondering at and scornfully pitying nations that could have had Lord George Gordon riots and blood-thirsty land-leagues, a reign of terror and a commune,--if we may learn not to be quite so arrogant in our righteousness, quite so boastful in our Pharisaism; if we may learn how much reason we of the New World have to bear in mind, when we read about the past and present