vul CONTENTS. ae 
Chambers’s Encyclopedia: a Dictionary of Universal ares for the —_— 
453.—Mitchell’s Manual of ctical Assaying, Cr Th ksh a 
monthly Journal devoted to the progress of the useful arts, —The- 
Biessy: Exposé des alee Quaternaires de la Suéde, ErpmMAnwn: Prof. Saf- 
and RiLEY, 485,—How ah Grow. A Treatise on the Chemical Composition, 
rial pursuits, NUGENT: Part 2 of the Butterflies of N. America, Epwarps: 
