PHYSIOGRAPHY
When do bodies attract and when do bodies repel each other? 596.
What was the fourth great discovery in electricity? 596.
What is the phenomenon of electrostatic induction? 597.
When is a wire said to have an electric current running through it? 597,
What is a galvanometer? 597.
What is a voltaic cell? 597.
What two features distinguish the storage cell from other voltaic cells?
597.
What is an induced current? 598. What is a thermo-electric current? 598. What is an ampere? 598. What is an ohm? 598. What is Ohm's law? 598-9. What is a volt? 599.
MAGNETISM.
What remarkable property has a magnet? 1145. What are the magnetic poles of a magnet? 1145. What is the fundamental principle of the compass? 1145. What is the magnetic declination? 1145.
What important discovery did Bianco note in regard to this? 1145-1 What is the magnetic dip? 1146.
Who was the first profound student of magnetism? 1146. What led him to believe that the earth is a magnet? 1146. When iron is heated red hot what is the effect on its magnetism? 1146. What is magnetic induction? 1146.
What sort of combination is called an electromagnet? 1146. Of what important scientific instruments is this a fundamental part? 1146.
PHYSIOGRAPHY
How is the term "physiography" used in England? 1482.
How is the term used in America? 1482.
What is its meaning when considered as the correlative of meteorology and of oceanography? 1482-3.
How does it differ then from physical geography? 182.
How is it related to geology? 1483.
How does physiography come to include meteorology and oceanography? 1482.
What are the three classes of processes that work on the earth's surface? 1483.
What does diastrophism include? 1483.
What does vulcanism include? 1483.
What does gradation include? 1483.
Where are the centers of these three activities? 1483.
The transfer of material is usually between what levels? 1483.
What are the greatest features of the earth's crust — both elevations and depressions? 1483.
Is it known how these features originated? 1483.
What is the continental shelf? 1483.
What are some horizontal irregularities of the land? 1483.
Of the ocean? 1483.
In what different ways have these originated by diastrophism? 1483.
By gradation? 1484.
By vulcanism? 1484.
What are the three great relief types of land? 1484.
How do plateaus and plains differ from each other? 1484.
What is implied by the term mountain? 1484.
How did plains originate? 1484.
How have their surfaces been modified? 1484.
Of what are plateaus the result? 1484.
Have they been similarly modified? 1485.
What are the various ways in which mountains originated? 1485.
What of their modification? 1485.
How are valleys made, leaving hills? 1485.
2404
