THE GEOLOGIST. 
The province of the Institute is to collect materials for elucidating the 
geology of the Austrian Empire, the order of its labours being : — 1. The 
geological exploration of the whole Austrian Empire. 2. The collecting 
of specimens and arranging them in a Central Museum. 3. Chemical 
analyses to be carried on with the minerals collected. 4. Chemical 
analyses to be extended also to the interest of mining and smelting ores. 
5. G-eological maps to be constructed and published. 6. Publications to 
be carried on, givmg the results of the work of exploration. 7. A library 
and archives to be opened to assist the studies and labours of the persons 
employed. 
A yearly grant of 36,000 florins (about £2760) is appropriated for these 
purposes. At first the Museum was placed in the palace of the Imperial 
Mint : but the collections soon increasing, it was necessary to remove it 
to another more convenient place, and one of the palaces of Prince Liech- 
tenstein was rented for the purpose. An extraordinary grant of 10,000 fl. 
was devoted in 1849 to the first arrangements, and two other special 
grants, the latter of them to the same amount, have been since passed for 
the expense of publication of Dr. Homes' ' Fossile Mollusken.' 
The articles sent to the Exhibition are : — 
I. Geological Maps— There are three different sets of Greological Maps. 
They are all grounded on the publications of the Military Geographical 
Institute and the field-work of the General Quartermaster Staff. The fol- 
lowing are finished in the greatest detail the published maps will allow, on 
the scale of one inch to 2^ English miles {2-25225) : — 1. Upper and Lower 
Austria. 2. Salzburg. 3. Styria and Illyria. 4, Bohemia. 
The following are general maps, executed on the scale of one inch to 4a 
miles :— 5. Tyrol and Vorarlberg. 6. Lombardy and Venetia. 7. Hungary 
and Croatia. 8. The Banat of Temesvar. 
The following, also general maps, but executed on the still smaller scale 
of one inch to 6| English miles {cartes routieres) : — 9. Transylvania. 10. 
Galicia. 
The lists of the colours and signs employed in geological maps necessa- 
rily gives the order and succession of the recognized divisions of the earth's 
strata ; and thus, although designed for one purpose, they manifestly 
effect another. The following general view of names of deposits and rocks 
refers to the ten excellent maps exhibited by the Austrian Geological In- 
stitute, explanatory of the colours and signs employed in these maps, thus 
gives a valuable list of the divisions and subdivisions of the Austrian beds, 
which we think it well worth while to find a place for in this journal. 
By comparing such lists with others, such as that of our own Geological 
Survey, students will get a fair idea of the comparative synchronisms of the 
various periods indicated in these classifications. The Austrian list shows 
no less than 174 different shades of colours, partly pure, partly combined 
with signs, particularly of differently coloured lines in various directions. 
The same tint gives the general idea of sameness of rock or deposit ; the 
numbers express more detailed references. It may here be observed that 
in the Austrian list, beginning with Alluvium, the order of names denotes 
the strata following each other in a descending order, down to 96 and 97 (the 
sandstones, slates, and limestones of the Carboniferous series). But M. 
Barrande's Silurian rocks of Bohemia, from B to H, or from jSTo. 98 (the 
Pribram slates) to No. 112 (the Hlubocep strata), follow an ascending 
order in the Austrian list, but have been transposed into descending 
order in that we have printed at page 350 ; the rest, from No. 113 to 
'No. 127, is again descending ; and then the massive and mostly crys- 
talline and eruptive rocks from granite. No. 128 to No. 160 (extinct 
volcanos), are again arranged in ascending order ; while numbers 160 
