What the Weather Man Thinks of Ocean Flying—I
Trans-Atlantic Flight from the Meteorologist's Point of View
Features
New Process for making Parabolic Mirrors
The Coconut Palm
Its Culture and Uses, with Special Reference to the Industry in the Philippine Islands
High Vacua and their Measurement
Acetic Acid
Radio Telephony—III
A Final Survey of the Problems Solved and the Future Rôle of Wireless Speech
Manganese Alloys in Open-Hearth Steel Practice
How Much of this Element, and in What Form, Represents the Best Usage?
Our Liquid Fuel
Methods and Magnitude of Petroleum Production in the United States
Estimating the Distance of Earthquakes
The Threshold of Vision
Animal and Vegetable Rennets
their Properties, their Preparation, and their Mode of Action
Animal Luminescence and Symbiotic Microbes
New Light upon the Much-Debated Question of Pasteur's Beneficent Organisms
Fundamental Concept of Physics
The Homing Habits of the Pulmonate Mollusk Oncidium
Bermuda Biological Station for Research, Dyer Island, Bermuda
