C 585 3 
Page Line 
262 I insert ‘ X ’ before the last * n ’ — line 9, for * of’ read ‘ if’. 
265 1 dele * or last ’ — line 4, for the last ‘ L ’ write ‘ L.’ 
269 1 3 after ‘ there is ’ insert * onl^.’ 
274 5 for * A ’ read ‘ B ’ — line 8, for the second ‘ a’ at top and bottom write ‘ b ’ 
— line I o, for * A ’ write ‘ B 
277 1 and 2, dele last ‘ ^ ’ in * survives 
282 3 transpose the * 3 ’ and * 2 ’ — line 7, in denominator dele < tt,’ in numerator 
dele * I — 
289 1 after ‘Nr:,’ insert ‘ 1 — ,’ — line 3, after ‘ become ’ insert ‘ — ,’ — line 5, 
at the commencement insert ‘ — ,’ — line 8, after ‘ h ’ insert ‘ — , 
290 1 at the commencement insert ‘ — , ’ — line 2, before ^ r ’ insert * — — line 3, 
L_. 
to ^ 2 P prefix ‘-f.’ instead of ‘ — ,’ — line 6, for ‘ with ’ put ‘without’ 
JL 
c 
— line 3 from bottom, in symbol, for ‘ o ’ write ‘ 80 ’ — line 2 from 
bottom, for ‘ n ’ put ‘ it ’. 
291 1 and 2 from bottom, dele dash above ‘ N.’ 
294 5 insert * t ’ before the semicolon. 
