docs: def abu_chartMulti(self, cyclist, mass_range=None, ilabel=True,
                         imlabel=True, imlabel_fontsize=8, imagic=False,
                         boxstable=True, lbound=20, plotaxis=[0,0,0,0],
                         color_map='jet', pdf=False, title=None, path=None):
          '''
          Method that plots abundence chart and saves those figures to a
          .png file (by default). Plots a figure for each cycle in the
          argument cycle.
  
          Parameters
          ----------
          cyclist : list
              The list of cycles we are plotting.
          mass_range : list, optional
              A 1x2 array containing the lower and upper mass range.  If
              this is an instance of abu_vector this will only plot
              isotopes that have an atomic mass within this range.  This
              will throw an error if this range does not make sence ie
              [45,2] if None, it will plot over the entire range.  The
              default is None.
          ilabel : boolean, optional
              Elemental labels off/on.  The default is True.
          imlabel : boolean, optional
              Label for isotopic masses off/on.  The efault is True.
          imlabel_fontsize : intager, optional
              Fontsize for isotopic mass labels.  The default is 8.
          imagic : boolean, optional
              Turn lines for magic numbers off/on.  The default is False.
          boxstable : boolean, optional
              Plot the black boxes around the stable elements.  The
              default is True.
          lbound : tuple, optional
              Boundaries for colour spectrum ploted.  The defaults is 20.
          plotaxis : list, optional
              Set axis limit: If [0,0,0,0] the complete range in (N,Z)
              will be plotted.  The default is [0,0,0,0].
          color_map : string, optional
              Color map according to choices in matplotlib
              (e.g. www.scipy.org/Cookbook/Matplotlib/Show_colormaps).
              The default is 'jet'.
          pdf : boolean, optional
              What format will this be saved in pdf/png.  The default is
              True.
          title : string, optional
              The title of the plots and the saved images.  The default is
              None.
          '''
  
          if self._which('dvipng')==None:
              print("This method may need the third party program dvipng to operate")
              print('It is located at http://sourceforge.net/projects/dvipng/')
  
          max_num = max(cyclist)
          for i in range(len(cyclist)):
              self.abu_chart( cyclist[i], mass_range ,ilabel,imlabel,imlabel_fontsize,imagic,\
                              boxstable,lbound,plotaxis,False,color_map)
              if title !=None:
                  pl.title(title)
              else:
                  name='AbuChart'
              if path is not None:
                  name = os.path.join(path, name)
              number_str=_padding_model_number(cyclist[i],max_num)
              if not pdf:
                  pl.savefig(name+number_str+'.png', dpi=100)
              else:
                  pl.savefig(name+number_str+'.pdf', dpi=200)
              pl.close()
  
          return None