| for 125 | for 150 | ||
| for 147 | for 202 |
As to monumental inscriptions,[[573]] there was once thought to be a gravestone at Katharein, near Troppau, with the date 1007, and one at Biebrich of 1299. There is no doubt, however, of one at Pforzheim of 1371 and one at Ulm of 1388.[[574]] Certain numerals on Wells Cathedral have been assigned to the thirteenth century, but they are undoubtedly considerably later.[[575]]
The table on page 143 will serve to supplement that from Mr. Hill's work.[[576]]
Early Manuscript Forms
| a [[577]] | Twelfth century A.D. | |
| b [[578]] | 1197 A.D. | |
| c [[579]] | 1275 A.D. | |
| d [[580]] | c. 1294 A.D. | |
| e [[581]] | c. 1303 A.D. | |
| f [[582]] | c. 1360 A.D. | |
| g [[583]] | c. 1442 A.D. |
For the sake of further comparison, three illustrations from works in Mr. Plimpton's library, reproduced from the Rara Arithmetica, may be considered. The first is from a Latin manuscript on arithmetic,[[584]] of which the original was written at Paris in 1424 by Rollandus, a Portuguese physician, who prepared the work at the command of John of Lancaster, Duke of Bedford, at one time Protector of England and Regent of France, to whom the work is dedicated. The figures show the successive powers of 2. The second illustration is from Luca da Firenze's Inprencipio darte dabacho,[[585]] c. 1475, and the third is from an anonymous manuscript[[586]] of about 1500.
