
A Rare Metal

A Rare Metal

Citric and Tartaric Acids from Cane Sugar

Citric Acid from Cane Sugar

Origin of Nitric Acid

The Free Oxygen of the Atmosphere

Vegetation in an Atmosphere Devoid of Oxygen, and Considerations on the Dawn of Animal Life

On RhinAnthin

Outlines of a New Atomic Theory

On the New Metal Actinium

On a Curious Actinic Phenomenon

On the Grains of Silica and Micrococci of the Atmosphere

Note on Characine

New White Pigment *

Heat by a Chemical Action

Infusoria and Nitrates