p. 350, 1. 10, 31, for a and a?, read a’ and a-2,

13

1.3 p. 351, 1. 24, for (Par)* +, read (2ax)=.

p. 353, 1. 2, for vad=and (81Va) read až+ and ✓(81a).

p. 356, 1. 3, for where, read when. p. 360, 1. 11, for V9, read 3/9. p. 365, 1. 14, for to observed, read to be observed. p. 370, 1. 17, for increased, read concerned. p. 371, 1. 6, for having, read have. p. 374, 1. 7, 22, for V(19—4) and ✓2, read (9 4) and. 2.

p. 376, 1. 2, 30, for x-ya and -3.0°, read 2-y* and =3.02.

p. 377, 1. 16, After Ex. 1. read the following: Cubing both sides, zo=a+b; .. x=v(a+b). Ex. 2. Given V (--8)=✓ (---3), to find the values of x.

p. 377, 1. 16, 18, 24, for value and quantity, read values and equation.

p. 380, 1. 1, 25, for 3abx and x, read 2abx and a. p. 381, 1. 29, for a y, read x-y.

do. 1. 33, for y=t, read y=3. p. 382, 1. 17, for =y', read tys. p. 383, 1. 4, for a given ratio, read given ratios. p. 337, 1. 3, for 16, read 6.

p. 388, 1. 16, for to the sum of their cubes as 20 to 7, read to the difference of their squares as 52 to 1.

p. 388, I. 37, after were, read persons relieved ; and each woman received twice as many shillings as there were women more than men. p. 390, 1. 3, for x=v-n, read r=-vn.

. p. 394, 1. 18, for x2 read x.

17 p. 398, 1. 3, for read

4 p. 400, 1. 12, for =5, read =1. p. 402, l. 12, for -61, read --21. p. 404, 1. 13, for --7, read 7. p. 406, 1. 9, for 6, read -6.

3

3

17

..

3

p. 407, I. 22, for 16, read 16x.
p. 408, 1. 23, for y, read ya.
p. 412, l. 11, for x=8, read r=3.
p. 416, 1. 26, for 18, read 8.

p. 417, 1. 6, 13, for as and square root of, read at and square of. - . , ca p. 437, 1. 22, for (co – z), read (62 —–2).

**C° *? p. 438, 1. 7, for values, read value. p. 440, 1. 8, for b-d, read b and d. p. 444, 1. x, for c, reud , d. p. 463, 1. 4, for (s), read (c)". po 464, I. 19, for x=0, read x=a. p. 480,1 4, for citiv-7, read := UV-7. p. 482, 1. 38, for Æquationum, read Æquationem.