  In order to examine the hypothesis of the existence of two different kinds of
nova populations in the Galaxy - 'disk' novae and 'bulge' novae - the frequency
distribution in the z-direction was obtained for 64 novae. The fact that large
number of fast novae related to disk novae are found at a significant distance
from the Galactic plane (up to z~3700 pc) can't result from photometric
measurements errors. Slow novae considered to belong to bulge novae show more
close concentration to the Galactic plane (z<1700 pc). A Kolmogorov-Smirnov
test run on the data showed that the two populations hypothesis probability
amounts to 95.56%.
