As it is impossible to describe this adequately, I must again ask the reader to assist with a few comparisons.

He has an idea of how much filth is produced, on an ordinary City lot, in a week, by its occupation by a family say of six persons.

Now let him imagine what would be the result if that lot, instead of having upon it six persons, with every appliance for keeping themselves clean, and for removing and concealing filth, was the home of one hundred and eight men, with none of these appliances.
That he may figure out these proportions for himself, I will repeat some of the elements of the problem: We will say that an average City lot is thirty feet front by one hundred deep.

This is more front than most of them have, but we will be liberal.

This gives us a surface of three thousand square feet.