5,460,919  13  14  As the  unsubstituted  or  substituted aralkyl  group shown  by Ru, R$_{12}$ ,  R$_{13}$ ,  and R$_{14}$ ,  benzyl,  p-methoxybenzyl,  p-me- As the cycloalkyl  group shown by Ru,  R$_{12}$ ,  R$_{13}$ ,  and R$_{14}$ ,  cyclopentyl and cyclohexyl  are preferred. These  cycloalkyl  groups may be substituted  with, preferably,  an alkyl group  (methyl, ethyl, etc.),  a hydroxy group,  or a  hydroxyalkyl  group  (hydroxymethyl,  2-hydroxyethyl,  etc.).  Specific  examples of the substituted  cyaloalkyl group  are 2-hydroxy› cyclopentyl, 3-hydroxycyclohexy  1,  4-hydroxycyclohexy  1,  3-(2’-hydroxyethyl)cyclopentyl,  3-(2’-hydroxyethyl)cyclo- hexyl, and  2-methylcyclopentyl.  As the alkenyl group  shown by Ru, R$_{12}$ ,  R$_{13}$ ,  and R$_{14 }$in  formula (C-I), an  alkenyl group having  from 2 to 8 carbon  atoms is particularly  preferable and examples  thereof are  vinyl, allyl, 2-butenyl,  3-hexenyl, and 4-octenyl.  Specific examples  of the substituted  alkyl group are  2-bromoethyl, hydroxyethyl,  3-hydroxypropyl,  methoxy› ethoxymethyl,  2-acetoxyethyl,  2-n-propionyloxyethyl,  2-carbamoylethyl,  6-trimethylarnmoniumhexyl,  and 10-tri- methylarnmonium-n-decyl.  As the alkyl group  having from 1 to  20 carbon atoms  shown by Ru, R$_{12}$ ,  R$_{13}$ ,  and R$_{14 }$in formula (C-I),  an alkyl  group having from  1 to 14 carbon  atoms is particularly  preferred and examples  thereof are methyl,  ethyl, propyl,  isopropyl, n-butyl,  n-hexyl, n-octyl,  n-decyl, n-dodecyl,  and  n-tetradecyl. Also,  these alkyl groups  may have a substituent  such as preferably  a halogen atom,  a hydroxy group,  an  alkoxy group, an  acyloxy group, a  carbamoyl group,  and a  trialkylammonium  group.  The quaternary  ammonium salt  compound shown  by  formula (C-I) for  use in this invention  is explained in detail.  These hydrophilic  colloidal layers may  contain an inor› ganic or organic  hardening agent.  As the hardening  agent,  The silver halide  photographic material  of the present  invention has at  least one layer  containing  a negative› working silver halide  emulsion on a support  and may have  other  light-insensitive hydrophilic  colloidal layers such  as a  protective layer, an  interlayer, an antihalation  layer, a filter  layer, etc.  The silver halide  emulsion for use  in this invention may  be spectrally sensitized  using one or more  kinds of sensi› tizing dyes for imparting  a spectral  sensitivity  at a desired  wavelength region.  For the sulfur  sensitization, active  gelatin, thiosulfates,  thioureas,  allylthiocarbamide,  etc., can be used.  For the gold  sensitization, HAuC1$_{4}$ ,  Au(SCN)i- salt,  Au(S$_{2}$ 0$_{3}$ )i 3 - salt  etc., can be used.  The silver halide  emulsion for use  in this invention  may  not be chemically  sensitized but usually  is  chemically sen› sitized. As the chemical  sensitizing method,  a sulfur sensi- tizing method, a reduction  sensitizing method,  a noble metal  sensitizing method,  or a  combination thereof  is used but a  particularly preferred  chemical sensitizing  method for the  practice of this invention  is a sulfur  sensitizing method  and  a  combination  of a sulfur  sensitization  and a gold sensiti- zation which is one  of noble metal  sensitization.  It  is preferred that the  content of the binder  contained in  the silver halide  photographic emulsion  layer for use in the  present invention  is not over 250 g  per mol of the silver  halide. As binder,  gelatin is most  preferable but other  hydrophilic colloids  than gelatin can be  used. For example,  albumin, casein,  graft polymers of  gelatin and other  poly- mers, hydrophilic  synthetic polymers  such as polyvinyl  alcohol, polyacrylamide,  etc., can be used.  Furthermore,  for obtaining  high-contrast images  more  rapidly and stably,  the developer can  contain at least one  kind of the quaternary  ammonium salt compounds  shown by  formula (C-I) described  above, the amines  shown by for› mula (C-11) or (C-ill)  described above,  and the cyclic imino  compounds shown  by (C-IV) described  above as a third  component.  Then, the alkaline  photographic developer  being used in  the present invention  is  explained. The developer  of this  invention is an alkaline  developer containing  at least an  aminophenol derivative  developing agent  and a reductone  compound.  The foregoing hydrophilic  colloidal layer(s)  for use in this  invention can contain,  if  necessary, various  photographic  additives such as  emulsion stabilizers  (hydroxytetraazain› dene compounds  such as  6-hydroxy-4-methyl- l,3,3a,7- tetraazaindene,  etc.), spreading agents  (saponin, etc.), gela› tin plasticizers  (copolymers  of acrylic acid esters,  etc.),  antistatic agents,  coating aids, various  kinds of surface  active agents (cationic,  anionic, nonionic,  and amphoteric  surface active agents)  for various purposes  such as the  improvement  of  photographic characteristics  (e.g., a devel› opment acceleration  and the increase  of contrast, etc.),  antifoggants (hydroquinone,  5-methylbenzotriazole,  1-phe› nyl- 5-mercaptotetrazole,  etc.), matting agents,  water-in- soluble or sparingly  water-soluble polymer  latexes (homo› or  copolymers  of alkyl acrylate,  alkyl methacrylate,  acrylic  acid, glycidyl acrylate,  etc.) for improving  the  dimensional  stability of the silver  halide photographic  material, etc., as  long as the effects  of the present invention  are not reduced.  The silver halide emulsion  for use in this invention  can be  prepared by an optional  known method. That  is, an acid  method, a neutral  method, an ammoniacal  method, etc., may  be used and for the  mixing process of  a soluble silver salt  and a soluble halide,  a single jet method,  a reverse mixing  method, a double  jet method, or a  combination thereof  can  be used. When  as one of double  jet methods, a pAg  controlled double  jet method (C.D.J.  method), that is  a  method of keeping  a constant silver ion  concentration (PAg)  in a liquid phase  of forming the silver  halide grains is used,  a  monodispersed  silver halide emulsion  containing silver  halide grains having  a uniform crystal  form and almost  uniform grain sizes  is obtained. During  the formation or  physical ripening  of silver halide grains,  a cadmium salt, an  iridium salt, or a  rhodium salt may  exist in the system  for  increase the contrast  of the silver halide  emulsion formed.  The mean grain size  of the silver halide  grains for use in  this invention is  preferably not larger  than 0.7  µm,  and  particularly preferably  not larger than 0.4  µm.  Also, the  silver halide grains  may have a regular  crystal form such  as  cubic, octahedral,  etc., or may have  an irregular crystal  form  such as spherical,  tabular, rounded wedge  shape, etc.  The silver halide  grains for use in this  invention can have  a relatively broad  grain size distribution,  but has preferably  a narrow grain size  distribution, and  in particular, a mono› dispersed silver  halide emulsion  containing silver  halide  grains 90% of the  total silver halide  grains of which  are  within –40% of the  mean grain size is  preferred.  working silver halide  emulsion. There  is no particular  restriction on the  halogen composition  of the silver halide  emulsion being used  and silver chloride,  silver chlorobro› mide, silver iodobromide,  silver  iodobromochloride,  etc.,  can be used. In this  invention, the content  of silver iodide of  the silver halide emulsion  is preferably not more  than 5 mol  %, and more preferably  not more than 3  mol %.  chromium salts (chromium  alum, etc.), aldehydes  (formal› dehyde, glyoxal,  etc.), N-methylol  compounds (dimethy› lolurea,  methyloldimethylhydantoin,  etc.), active halogen  compounds  (2,4-dichloro-6-hydroxy-s-triazine,  mucochlo- ric acid, etc.), active  vinyl compounds  (1,3,5-triacryloyl› hexahydro-s-triazine,  etc.), epoxy derivatives  and aziridine  derivatives hardening  agents can be used. 