Salt and Lime.

Renewing Paint without Burning.

A Green or Golden Color for all Kinds of Brass.--By E. PULCHER.

Vinegar.

The Preservation of Meat by Carbonic Acid.

On the Adulteration of Soap.--By Dr. H. BRACKEBUSCH.

IV. CHEMISTRY.--Testing Olive Oil.--By Dr. O. BACH.

On the Theory of the Formation of Compound Ethers.

The Alizarine Industry.

Reduction of Oxidized Iron by Carbonic Oxide.

V. MEDICINE AND HYGIENE.--Bovine and Human Milk; the Difference
in its Action and Composition.--By C. HUSSON.

Cereal Foods in their Relation to Health and Disease.--By F. R.
CAMPBELL.

Moist Air in Living Rooms.

The Developmental Significance of the Human Physiognomy.--