rest of
the evidence it is wise to adopt it; if on the other hand the other
evidence seems in any serious degree contrary to those results it may be
surmised that the assumption is faulty in some particular. The harvest
date referred to below helps to show that the first part of the
assumption is justified.

+---------+---------------+--------+----------+------+--------+------+
|Dynasty. | Meyer 1887 |Petrie | Meyer |Sethe |Breasted|Petrie|
| |(minimum date).|1894 &c.|1904-1908.|1905. | 1906. |1906. |
+---------+---------------+--------+----------+------+--------+------+
| I. | } | 4777 | 3315 | 3360 | 3400 | 5510 |
| II. | } 3180 | 4514 | | 3110 | | 5247 |
| III. | } | 4212 | 2895 | 2810 | 2980 | 4945 |
| IV. | 2830 | 3998 | 2840 | 2720 | 2900 | 4731 |
| V. | | 3721 | 2680 | 2630 | 2750 | 4454 |
| VI. | 2530 | 3503 | 2540 | 2480 | 2625 | 4206 |
| VII. | | 3322 | | 2300 | 2475 | 4003 |
| VIII. | | 3252 | | | | 3933 |
| IX. | | 3106 | 2360 | | 2445 | 3787 |
| X. | | 3006 | | | | 3687 |
| XI. | | 2821 | 2160 | 2100 | 2160 | 3502 |
| XII. | 2130 | 2778 | 2000 | 2000 | 2000 | 3459 |
| XIII. | 1930 | 2565 | 1791 | | 1788 | 3246 |
| XIV. | | 2112 | | | | 2793 |
| XV. | 1780 | | 1680[*] | | | 2533 |
| XVI. | | 1928 | | | | 2249 |
| XVII. | | 1738 | | | | 1731 |
| XVIII. | 1530 | 1587 | 1580 | | 1580 | 1580 |
| XIX. | 1320 | 1327 | 1321 | | 1350 | 1323 |
+---------+---------------+--------+----------+------+--------+------+
[*] Meyer makes XIII. overlap XV. (Hyksos), and XIV. (Xoite),
contemporary with XVI. (Hyksos) and XVII. (Theban).

The duration of the reigns in several dynasties is fairly well known
from the incontrovertible evidence of contemporary monuments. The XXVIth
Dynasty, which lasted 139 years, is particularly clear, and synchronisms
fix its regnal dates to the years B.C. within an error of one o