This quote is from an article by the reformer Jacob Riis that appeared in a New York City newspaper in 1891:
"I took my camera and went up in the watershed photographing my evidence wherever I found it. Populous towns sewered directly into our drinking water. I went to the doctors and asked how many days a vigorous cholera bacillus may live and multiply in running water. About seven, said they. My case was made."

Source: http://en.wikipedia.org/wiki/Jacob_Riis

How does this quotation illustrate the new approach used by some reformers to implement social change in the late 1800s and earl

Question

This quote is from an article by the reformer Jacob Riis that appeared in a New York City newspaper in 1891:
"I took my camera and went up in the watershed photographing my evidence wherever I found it. Populous towns sewered directly into our drinking water. I went to the doctors and asked how many days a vigorous cholera bacillus may live and multiply in running water. About seven, said they. My case was made."

Source: http://en.wikipedia.org/wiki/Jacob_Riis

How does this quotation illustrate the new approach used by some reformers to implement social change in the late 1800s and earl