68 MENSURATION OF 



quantite of f e length of fat playne. When you 

 wilt mesure f e playne of lande or water withouten 

 f e quadrant, take pan tuo gerdes and rayse fat 

 one even vp right on f e playne. and calle f e 

 playne BE and f e jerde vp raysed AB in whilk 

 jerde set evene corneldly anof er jerde even dis- 

 tonding to f e playne and pis jerde sale hight CD 

 fan beside f e jerde vp raised AB set fin eigh 

 and biholde f e ende of f e playne to be mesurede. 

 and mark by whilk place of fat of er jerde CD f i 

 sight bem passes, and calle fat poynte E fan by 

 f e quantite of f e seconde jerde CD multeply f e 

 first gerde AB and departe fat comes f ereof by f e 

 quantite of AC and fan comes f e length of f e 

 playne. When you wilt wite whilk es f e brede 

 of a ryvere. kast a table vpon f e grounde nere f e 

 ryvere. fan biholde f e ende of fat of er side f e 

 ryver by a reulure vpon f e table. And drawe 

 a lyne by fe reulure on fe table. Est se fe for- 

 saide ende by f e same reulure in an of er place of 

 f e table, and fere make anof er line, fan go in a 

 playne place and lay a threde on fat one lyne. 

 and anof er threde on fat of er lyne and continu 

 fern even til f ei come to gidere. and howe mykel 

 distaunce fat es to say space es fro f e metyng of 

 fe thredes to fe table so brode es fe ryvere. 

 When you wilt mesure f e brede of a ryvere by a 

 quadrat, make fi quadrat ABCD as it es saide 

 bifore of mesuryng of heght by f e quadrant, fan 

 set f e quadrat beside f e ryvere and loke by CB 

 f e ende on fat of qer side f e ryvere. and calle fat 



