JfOTICE. 
It lias long been my anxious desire that Catalogues of the 
contents of the various Departments of the Museum of Practical 
Geology should be published. One of these Catalogues, that of 
the Rock Specimens, as prepared by Professor Ram.say, was 
issued in April, 1859, and has been found so useful that a third 
edition has been printed. , ^ tgttf. 
The present Catalogue of the Minerals and Ores has been 
composed under the direction of Mr. Warington Smyfch, and 
the explanations to the various groups of Specimens have been 
voluntarily contributed by that able Mineralogist, in the midst 
of his arduous public duties. 
To him and to Mr. Trenham Reeks, the Curator of the 
Museum, I feel deeply indebted for their assiduous labour in 
completing the work, as well as to Mr. F. W. Rudler, the 
Assistant-Curator, who has so accurately labelled amd neatly 
placed the Specimens, and has also materially assisted in passing 
the sheets through the press. 
A Catalogue of the Collection of Organic Remains in the 
Museum, with an explanatory preface, by Professor Huxley, 
and a descriptive Catalogue of the Mining, Metallurgical, and 
Geological Models by Mr. H. Bauerman, are in the press, and 
will shortly be published, 
RODERICK I. MURCHISON, 
Bivectov. 
Museum of Practical Geology, Jermyii Street, 
November, 1864. 
