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PART II.— PHYSICS. 



SYNOPSIS OF CONTENTS. 



I. Meteorology : 



1. Temperature of the Air. 



2. Pressure of the Air. 



3. Wind and weather. 



II. 1. Temperature of the Sea. 



2. Specific gravity of sea-water. 



III. 1. Formation and Composition of sea- water ice. 

 2. Temperature and thickness of ice. 



IV. Tides and Currents. 



V. 1. Geodesy and Pendulum experiments : 

 2. Measuring the motion of glaciers. 



VI. 1. Observations on refraction and on Air. 

 2. Observations and experiments on Sound. 



VII. Terrestrial Magnetism : 



1. Declination. 



2. Dip. 



3. Magnetic intensity. 



VIII. 1. The Aurora Borealis. 



2. The spectrum of the Aurora. 



3. Experiments on the Electrical state of the air. 



