INDEX, 
Wootz, experiments on, with diluted sulphuric acid, 
experiments with oxide of, 
— - compared with other states of iron, 
Z 
Zone-clock , description of, 
page 
33i 
336 
343 
399 
From the Press of 
W . BULMER & Co. 
Cleveland- Row, St. James's. 
ERRATA. 
PART I. 
Page 147 line 13, for 25, read 2,5. 
PART II. 
Page 298 line 2, insert the Rev., after By. 
Page 302 line 2, insert in after units. 
Page 318 line 2 from bottom, for px n+ 1 — mrz mJ r 1 , read p x n 4- 1 
Page 343 line 5 from bottom, for f,g, read e,f. 
line 3 from bottom, for 3. c, read 3. b. 
line 2 from bottom, for/, g, read e,f. 
Page 344 line 3, for i, k, read h, i. 
line 4, for g, read f. 
line last but one, forg - , read/. 
Page 345 line 4, for i, read h. 
line 5, for g, read b. 
Page 364 line 6 , for rail, read rails. 
Page 372 line 17, dele comma after shape. 
Pago 433 line 11, for in which the chains were laid off, read to which the chains were 
reduced. 
Page 492 line 17, for in the degrees, read in degrees. 
Page 5x7 line 2, for Direction, read Directions. 
Page 522 line 11, for E and L, read R and W. 
Page 526 line 4, for a degree, read the degree. 
Page 537 line 1 
Page 557 line 
Z 
