Copyright  by  Underwood  Sf  Underwood

Llamas  in  Cerro  de  Pasco,  Peru,  bringing  in  their  burdens  of
copper  ore  from  nearby  Indian  mines

u  Custom  has  decreed  the  exact  weight  each  burro,  llama  or  mule  will  carry,
and  let  me  add  that  these  animals  know  to  a  nicety  their  load,  and  are  life
members  of  a  union  that  prohibits  its  initiates  from  carrying  more  than  is  expected ­
  of  them.”

See  page  j/j