Eckhel, De Doctrina Nummorum Veterum. Viennæ, 1792—1798, 8 vols. 4to. And the epitome:

† Eckhel, Brief Elements of Ancient Numismatics. Vienna, 1707, 8vo. Another very useful work is:

J. C. Rasche, Lexicon Universæ Rei Nummariæ Veterum. 1785, sq. 5 vols. 8vo.

annals,

10. Chronicles or annals form the second great division of written historical monuments. These presuppose the invention of letters, and the use of materials for writing upon; consequently they are of a later date than mere inscriptions. They occur, nevertheless, in the earlier periods of nations; and from such annals, indited by public authority (state chronicles,) subsequent historians have generally drawn materials for their works. In many nations, and in nearly all the eastern ones, history has not even yet advanced beyond the composition of such chronicles.

regular histories.

11. The third great division of historical writings is formed of works composed on philosophical principles, which differ from mere annals by their containing not only a chronological narration of events, but also a development of their connection with one another, their causes and effects.

But few nations among the moderns, and we know of none among the ancients, except the Greeks and Romans, that had any acquaintance with this sort of history. A fact which may be attributed,—1st. To the government; for the more completely the affairs of a nation are under the control of arbitrary power and caprice, whether of one or more individuals, so much the less apparent is a rational internal connection of events. Hence philosophical history flourishes most under free governments; and has not even a shadow of existence under pure despotic constitutions. 2nd. To the degree of civilization to which the nation may have attained: for the observing and unravelling of the political connection of events presupposes a considerable progress in philosophical culture.

Chronology and Geography.

12. Since all events are considered in reference to the time and place in which they occur, it follows that geography and chronology are indispensable as auxiliary sciences in the study of history, especially the ancient. These sciences, however, need not, for this purpose, be considered in their full extent and detail, but only so far as they are of use in determining and arranging events according to time and place. A fixed mode of computing time is therefore necessary in ancient history, as well as a continuous geographical description of the countries which were the theatres of the principal events.