s see top of first column of this page, or ad- be hadatthis office aDdfrom all newsdealers. An interesting review of ten years'work performed by JOHN S. URQUHART, 46 Cortlandt St., N. Y. American Zoologists. Contained in Scientifio Ameri- MUNN &: CO., Publishers, can Suppli<:ment. NOS. 607» 608 and… … THE COPYING PAD.—HOW TO MAKE Copyrighted. Size 14x20 In. PatmUd. and how to use; with an engraving. Practical directions LEAD SMELTING.—A FULL DESCRIP- SYSTEMS OF DISTRIBUTION OF how to prepare the gelatine pad, and also the aniline ink by whicn the copies are made; how to apply the written tion of…