He agreed with John Snow at the time ; however , his opinion , like Snow 's , was not publicly supported .
In 1866 , Lankester wrote about John Snow 's conclusion that the pump itself was the cause of the Cholera outbreak .
John Snow agreed with John Snow at the time ; however , John Snow 's opinion , John Snow Snow 's , was not publicly supported .
In 1866 , Lankester wrote about John Snow 's conclusion that the pump itself was the cause of the Cholera outbreak .