Abstract: A process for the preparation of an internal latent image type silver halide emulsion containing silver halide grains comprising a central core of silver halide doped with metal ions, chemically sensitized or a combination thereof and an outer shell of silver halide covering at least light-sensitive sites of the central core characterized in that the surface of the silver halide grains are chemically sensitized in the presence of a polymer containing the repeating unit represented by general formula (I) ##STR1## wherein symbols R.sup.1 and Q are defined in the specification.

Abstract: A process for preparing a sulfur-sensitized silver halide photographic emulsion whose average grain size does not exceed 0.5 .mu.m, which comprises forming the silver halide grains in the presence of ammionia and incorporating therein at least one hydroxytetrazaindene compound represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an aliphatic group or an aromatic group, and n represents 1 or 2; to thereby increase sensitivity.