JUAN TREMOLERAS 
194 PIEDRAS 
tvi o iM T e: V I D e:o 
(URUGUAY) 
Dear Sir, 
Hereby I take the liberty of informing you that I have to sale some 
very fine and remarkable geological and mineralogi cal collections from the 
Argentine Republic and from Uruguay. 
These collections have been made by an European Geologist who was en- 
gaged in exploration and collecting work in these countries for several years 
and who is famous of being a specialist in fine and lucid arrangement of col- 
lections. 
The collections are composed of freshand typical specimens of a regu- 
lar size, very suitable for museum and scientific institutions, as well as 
for teaching work in Geology, Mineralogy and Mining. They are used by seve- 
ral professors of geology in their lectures. 
Each specimen of these collections is carefully classified, properly 
prepared and fully labelled. Besides this, each collection bears an exact and 
complete text containing all desirable information. 
In the rapid advancement now being made in the knowledge of ore 
deposits, those of South-Amer i ca may of f er, a spec ial interest representing 
a somewhat anomalous type which has not yet been studied thoroughly. These 
collections contain not only the principal ores with associated minerals and 
wallrocks, but also the igneous rocks in connection with them and a full set 
of rocks illustrating the general geological conditions of the deposits in 
question. Besides there are available smelting products and samples showing 
stages of working those minerals. 
The collection of the Sierra de Cordoba is a collection of a very high 
value, illustrating the phenomena of metamorphism in such a hadsome manner 
and with such a variety that it obtained the higest award (Grand Prize) in 
th‘e Universal Exposition of Turin (Italy) in 1911. In the same way the other 
collections too, offer a very great scientific interest, being the first sys- 
tematic collections made in countries where geological and mineralogical 
studies until now have been made only occasionally and by way of rapid ex- 
plorations. 
Enclosed you will find a list with an approximate index and summary 
description of these collections. The prices are very low considering the 
great expenses of long lasting travelling in those countries and the diffi- 
culties met with in bringing materials from remote localities to the railroad 
stations or seaports. All these collections were made originally for a great 
European scientific institution, but due to the impossibility of shipping 
them to Europe at present, the owner was obliged to offer them for sale any- 
where. This is an unique chance of getting a fine collection representing 
a many years effort. 
The price is payable in Uruguayan currency, without freight and pac- 
kage; but payment can be made by instalments at your convenience. 
Hoping that I will be favoured by an early reply, 
I remain, 
yours very truly. 
