ti6 SPECIMEN DE VSV OBSERVATIQNFM 



Coroll. 4. 



61. Sin autem mimerus fit forrme 8 «—f— 3, 

 tum tanxum qiuJrata lmparia duplicata luotraui debcac, 

 quae lunt : 



I. 2, 242, 882, 19*2 etc.II. 18, 33$, 1058, 21*78 ete, 



24.0, G+O, lO^O 

 4 ;o , 400 



320, 720, il 20 

 400, 400 



III 50 450, 1250, 2450 etcIV. 98, 57*, »45» 2^38 ete, 



400, 8oo, 1200 480, 880, ii8o 



400, 400 400, 400 



V-. 162, 722, 1(582, 3042 CtC 

 560, 9<5o~, i$6o 



400, 400 



Exemplum 



r. 



£2. Exploretur numerus 67; 79, vtrum fit psU 

 mus, nec nc ? 



Curv hic nnmeriis contineatur in forma 8«-f-3 r . 

 fubtrahantur numeiorum ordines ex comll 4 , isqu©.: 

 tantu.n (ecunJiis , tertius ac quartus , quia pnmu r 

 et qumtus aarent notam finaJem 7 , quae quadrato re- 

 pjgoat ; 



H.&757J 



