  In the preceding note math.DG/0610917 the
$\Lambda_{k-1}\mathcal{C}$--spectral sequence, whose first term is composed of
\emph{secondary iterated differential forms}, was constructed for a generic
diffiety. In this note the zero and first terms of this spectral sequence are
explicitly computed for infinite jet spaces. In particular, this gives an
explicit description of secondary covariant tensors on these spaces and some
basic operations with them. On the basis of these results a description of the
$\Lambda_{k-1}\mathcal{C}$--spectral sequence for infinitely prolonged PDE's
will be given in the subsequent note.
