Hydrofluoric Formulas, [326]

Hydrographic Paper, [504]

Hydrogen Peroxide as a Preservative, [605]

Hygrometer and Its Use, [401]

Hydrometers and Hygroscopes, [402]

Hyoscyamus, Antidote to, [102]

I

Ice, [402]

— Flowers, [402]

Iced Coffee, [114]