Both the white and the yolk contain sulphur, but the latter the most abundantly.
What is it that makes an open or foul sewer so destructive of health to any district in which it may be situated?
The evolution of sulphuretted hydrogen. When inhaled, it acts directly upon the blood, thickening it, and turning it black.
Why do surfaces painted with lead paints, in the vicinity of sewers, soon turn black, or become discolored?
Through the action of sulphuretted hydrogen.
What is nitric acid?
Nitric acid, or aqua-fortis, is a compound of five parts of oxygen and one of nitrogen.
It is liquid; when pure, colorless, and highly corrosive; it attacks almost all dead, unorganized substances, and destroys living tissues.
What is muriatic, or, more properly, hydrochloric acid?
A compound of hydrogen and chlorine usually prepared from salt. It is an acid much used in the arts.