INDEX. 



Wilfon, Dr. Ijl 



Worcefter, Marquir of, his inventions for 

 quick firing, 118 



Xenophon, 172 



Yeaft, artificial, method of making in 



Germany and Sweden, 228 

 Young, Dr. 221 



Zinc, 288. 



2. 



JSNO OF THE FIFTH YOCUMF. 



Printed by \V. Stratford, Crown-Court, Temple-Bar. 



