Requirements March 1927 until September 1962

1. Have a general knowledge of the composition of air, referring to both constant and variable elements of the air and what function each performs.

2. Develop quite broadly the subjects moisture, fog, hail, rain, and snow.

3. Explain points connected with electrical and optical phenomena in the air, i.e., have a knowledge of the following: rainbow, mirages, looming, halos, northern lights, St. Elmo's fire, lightning and thunder. Describe as many of the above as you have seen.

4. Have a knowledge of the use and construction of and demonstrate your ability to read a barometer, thermometer, anemometer, psychrometer, and rain gauge. Have constructed a weather vane. Know the weather signals or storm signals.

5. Outline in writing a simple statement of the climate of the United States and of your own state.

6. Explain the value of weather prediction. Write a brief account of the United States Weather Bureau, stating what daily, weekly, and monthly publications are sent out by this bureau. Be able to interpret the charts and graphs contained in their publications.

7. Keep a daily record for a month of the following: dew or frost in the morning; at a specific hour each day (this hour must be the same every day), the direction of the wind, the temperature, kind of clouds (if any) in the sky. (State if it rains or snows at this hour.)

8. Name some places where, during severe thunder storms, the danger from lightning is great, some places where the danger is small.