NOTE DE M. MARCOU. 133 
School of mines, and the mining record Office for theyears 1853 to 
1865, in-8, London. 
Catalogue of thepublished maps, sections, memoirs and other pu¬ 
blications of the geological Survey of the united Kingdom, up to oc- 
tober 1867, in-8, London. 
List of memoirs, maps, sections, and other publications of the 
geological Survey of the united Kingdom, in-8 et in-folio, avec 
carte-index, 1854 et 1866. 
Geological Survey of the united Kingdom. Muséum uf p radical 
geology, atid Royal School of mines (16 th session, 1866 -67), in-8, 
London, 1866. 
Her Majestys geological Survey of the united Kingdom, and its 
connection with the Muséum of Irish industry in Dublin, and that 
of practical geology in London ; by J. Beete Jukes. in-8, Dublin, 
1867. 
Instructions for the guidance of the officers of the Irish branch of 
Her Majestys geological Survey of the united Kingdom , in-8, Du¬ 
blin, 1867. 
A descriptive Guide to the Muséum of practical geology , with no¬ 
tices of the geological Survey of the united Kingdom, the Royal School 
of mines and the mining record Office, by Robert Hunt and Rudler, 
3 e édition, in-8, Londres, 1867. 
A Catalogue of the minerais collections in the Muséum of practical 
geology, with introductory and explanatory remarks ; by Waring- 
ton W. Smyth, T. Reeks and Rudler, in-8, London, 1864. 
A Descriptive catalogue of the geological, mining, and metallur- 
gical models in the Muséum of practical geologg ; by H. Bauerman, 
in-8, London, 1865. 
A Descriptive catalogue of the rock specimens in the Muséum of 
practical geology, with explanatory notices of their nature and mode 
of occurence in place; by Andrew G. Ramsay, H. W. Bristow, Ar- 
chibald Geikie and H. Bauerman, in-8, 3 e édition, Londres, 
1862. 
A Catalogue of the collection of fossils in the Muséum of practical 
geology , with an explanatory introduction; by T. H. Huxley and 
RobertEtheridge; in-8, London, 1865. 
M. d’Archiac exprime le désir que les sources auxquelles 
ont été puisés ces renseignements intéressants soient indi¬ 
quées avec précision. 
M. Marcou répond que tous les chiffres qu’il a cités sont 
extraits des rapports officiels de sir R Murchison. 
