Page 18, line 5 from bottom. for 600 x 20 × 4 read 600+20 +4
19, lines 7 & 8 from do..the figures are not correctly ranged.
22, line 7 from do....for 15995458 read 15991458,

23, line 9, for....012

read... 112.
read.... 7582824.
read....common.
read.... 27.

read.... 8.0.

read.... 3,14159
read... 4 cwt
read.. 135

read.. purchase
read bought

...

st.

.9s 4d

read 948

read.... cwt

188. line 39. for......wt

190 line 2, for
192, line 20 for....3 9.
197, line 36 for...with
228, line 27 for..
.... rate
233, line 29 for....37 8
240. line 7, a decimal
241, lines 19, 23 for marks

200. and 261, 2 figures do
270. line 37 for..

271, line 38

107

79P