  In this article we discuss a few aspects of the space-time description of
fields and particles. In sectionn II and III we demonstrate that fields are as
fundamental as particles. In section IV we discuss non-equivalence of the
Schwarzschild coordinates and the Kruskal-Szekeres coordinates. In section V we
discuss that it is not possible to define causal structure in discrete
space-time manifolds. In App.B we show that a line is not just a collection of
points and we will have to introduce one-dimensional line-intervals as
fundamental geometric elements. Similar discussions are valid for area and
volume-elements. In App.C and App.D we make a comparative study of Quantum
Field Theory and Quantum Mechanics and contradictions associated with
probabilistics interpretation of these theories with space-time dimensional
analysis. In App.E and App.F we discuss the geometry of Robertson-Walker model
and electrostatic behavior of dielectrics respectively. In Sup.I we discuss the
regularity of Spin-Spherical harmonics and also derive an energy-spectrum which
is free of back-reaction problem. In Sup.II we discuss that in general the
integral version of Gauss's divergence law in Electrodynamics is not valid and
rederive Gauss's law and Ampere's law. We also show that under duality
transformation magnetic charge conservation law do not remain time reversal
symmetric. In Sup.III we derive the complete equation for viscous compressible
fluids and make a few comments regarding some cotradictions associated with
boundary conditions for fluid dynamics. In Sup.IV we discuss a few aspects on
double slit interference experiments. We conclude this article with a few
questions in Sup.V.
