Heating by Hot Water

A Hot Water Engineer

The Linde Ice Machine

Improved Varnish Boiler with Automatic Regulator

Twin Screw Steam Launch

The Steam Yacht “Lady Franklin”

Twin Locomotive

An Exhibition of Wall-Papers

Pumping Gold

New Automatic Siphon

The Smith-Odling Miner's Lamp

Thin Plates of Metal

A New Determination of the Chemical Equivalent of Aluminum

The Ammonia-Soda Process

Manufacture of Sugar

Duplex Drop Shutter

Compressed Gas

Absorption of Gases by Charcoal

On A New Series Of Equivalents Ob Molecules*

Relations Between Temperature and Volume in the Generation of Ozone, with Description of a New Ozonator

Important Extension of the Use of the Blowpipe in Quantitative Determinations

Bronchial Asthma

Cold Water in Typhoid

Grapes as Food

The Carolina Twins

New Remedies

Leprosy in America

A New Industry. —Fig Culture at the North a Success.

The “New Departure”—What it “Believes” and What it “Contends”

James Watson Robbins, M.D

Jacob Bigelow, M.D., LL.D.

Home Made Superphosphate

Food Reforms

Mackerel

The Torrey Botanical Club

The Reproduction of Eels

Archeological Explorations in Tennessee

On the Recent Eruption and Present Condition of Vesuvius

On Some Physical Properties of Ice; On the Transposition of Bowlders from Below to Above the Ice; And on Mammoth Remains

Sandstone in Coal

A New Battery

On Certain Means of Measuring and Regulating Electric Currents

The Solar System