  We present the first detailed data of the momentum-resolved, temperature
dependence of the superconducting gap of $Bi_{2}Sr_{2}Ca_{1}Cu_{2}O_{8+x}$,
complemented by similar data on the intensity of the photoemission
superconducting condensate spectral area. The gap anisotropy between the
$\Gamma-\bar{M}$ and $\Gamma-X$ directions increases markedly with increasing
temperature, contrary to what happens for conventional anisotropic-gap
superconductors such as lead. Specifically, the size of the superconducting gap
along the $\Gamma-X$ direction decreases to values indistinguishable from zero
at temperatures for which the gap retains virtually full value along the
$\Gamma-\bar{M}$ direction.
