Arsenic in Water. — arsenic, copper and mercury are rarely found in drinking water is in America, except in streams flowing near chemical works, or unless they are introduced designedly with some murderous intention. These metals may, therefore, be practically ignored in the consideration of water from a hygienic point of view.

Last night, I [...]

Iron in Water. — the presence of iron in a water, rendering it what is called Chalybeate, from the old Greek name for iron, renders it to many persons only a useful topic, but in some people it causes severe headache and serious disturbance of the digestive organs.
When I was younger I have distinct [...]