  Paper dedicated to qualitative study of the solution of the Zaremba type
problem in Lipschitz domain with respect to the elliptic equation in
non-divergent form. Main result is Landis type Growth Lemma in spherical layer
for Mixed Boundary Value Problem in the class of "admissible domain". Based on
the Growth Lemma Phragm\'en-Lindel\"of theorem is proved at junction point of
Dirichlet boundary and boundary over which derivative in non-tangential
direction is defined.
