, REPLY TO THE CRITICISM ON PROSPECTING WORK FOR GAS IN HUNGARY. 99 
Old Tertiary strata were touched by the folding and that breaking 
. was only a posterior phenomenon. 
In one word, the Northern part of the Balaton and the Pécs 
. Mountains are remnants of folded mountains, in the same way as 
the Croatian Island Mountains, or horsts remained Írom the folds 
, ofthe Alps not sunk conseguently to the break-downs; the Tertiary 
folds being between, and continuing in, them are nothing else, but 
posthumous folds above the broken down parts of their folds. 
Neither Dr. Lóczy sen. nor Dr. Lóczy jun. realized this. It is 
however proved beyond any doubt by our latest observations. 
These observations have been accompanied with referénce to the 
movement of the foldéd earth-erust, by the result that they aré still 
"going on, that théy can bé detérmined by, and proved in, thé Pleis- 
"tocene strata of the Hungaro-Croatian Basin on a stratigraphical 
as well as ona téctonical basis, as I succéeded in 1922 to show on 
map Kaposvár Böhönye, and as Í shall have the honour to publicate 
. within short. 
A furthér result of thesé reséarches is, that the origin of the 
geographical teaching of Messrs Lóczy sén. and Cholnoky in mattérs 
of the téctonical valleys of the counties of Zala and Somogy has 
been. eleared. 
It stands beyond any doubt to-day, that they can be explained 
to be deflational, parallel valley formations and that they are not to 
be brought into whatever connection with the tectonics, which are not 
broken in the Tertiary, but that they are purely caused by the do- 
minating direction of thé wind. The tectonics of the Tertiary are not 
broken but folded and the trend of the folds (E— W) is running across 
these valley formations of deflational origin having a N—5S direction. 
Shortly I may say, that Mr. Lóczy jun, had he sacrificed more 
time to studying his fatherjs papers and principally the younger 
formations of our Country, he would not have been mistaken. It would 
also have been much nicer of his part, had hé referred to one of my 
papers publishéd in 1915 in his paper on the same subject, which 
I had to draw his attention to these three vears latér ! 
:.F. PÁVAI VAJNA 
Mining Councillor, Chief Geologist. 
