I S4. Mifcellanea Curio [a. 



For the underftandingof it, it is only ne- 

 ceflary to confider all the Terms by which 

 the lame Power of z. is multiplied ? in or- 

 der thereto f diftinguifli two things in each 

 of thefe Terms , Firft, The Product of cer- 

 tain Powers of the Quantities, a, b, c, d, &o 

 Secondly, The VncU (as Oughtred calls 'em) 

 prefixt to thefe Produ&s. To find all the 

 Produces belonging to the fame Power of 

 to that Product for inftance, whofe Index is 

 m~Yr (where r may denote any integer Num- 

 ber) I divide thefe Produces into feveral Clafi 

 fes; thofe which immediately after fome 

 certain Power of a (by which all thefe Pro- 

 duces begin) have b, I call ProduEts of the 

 firft CUffis ; For Example, a m ^ Pe is a Pro- 

 duct of the firft CUffis, becaufe h immediate- 

 ly follows a m ^'\y thofe which immediately 

 after fome Power of a have c, I call Products 

 of the fecond CUffis, fo a m ~~^ ccd is a Produd: 

 of the fecond CUffis; thofe which immedi- 

 ately after fome Power of a have d, I call 

 Produds of the third CUffis, and fo of thq 

 reft. 



This being done, I multiply all the Produces 

 belonging to tUftkfmf (which -precedes imme- 

 diately by &.and divide 'em all by a-, 

 Secondly, I multiply by c and divide by a, 



all the Produces belonging to z m ^~ r ~~ 2 , ex- 

 cept thofe of the firft CUffis Thirdly, I 

 multiply by d and divide by a all the Pro- 

 duds belonging to *, WI + r """^ except thofe of 

 the firft and fecond CUffis ; Fourthly, I mul- 

 tiply by e and divide by a all the Terms be- 

 longing 



