PKOGKESS IN AGRICULTUKAL EDUCATION. 



593 



Dekinitiun and SCUI'E. 



The atmosphere (in general) . 



Temperature 



Orijrin. 

 Composition. 

 Exti'iit aiifl wcisrlit. 



r>xii'iir aiiu wcipriu. 

 Arran};('ineiit about tlii' cartli ( 

 [ splieru and hyclru.«i)lit're). 



relations to geo- 



Pressure 



Cl KCU J.,ATION G ENERA L JIOV EM ENTS 



AND LOCAL WINDS. 



fSoiirccs, nature, transmission of heat. 

 I Variations, 

 i Measurement. 

 [Distribution over the earth. 



General principles. 



Meii.«urenH'iit. 



Distribution. 



Relations to atmospheric circulation. 



Moapurement. 

 Distribution. 

 Cau.-cs ami modifying influence ( convectional 



theory ami effects of earth's rotation). 

 Classilication. 



.V TM OSPH EH I C 

 MOISTURE. 



Storms 



Origin. 



^leasurement. 



Distribution. 



[Dow. 



Condensation in form of < Frost. 



[Clouds. 



I Tropical. 

 Extratropical. 

 Anticyclones. 



Tliunderstorms. 

 Tornadoes. 



r Rainfall 



Precipitation .. 



[SiKnv, 



Snnrces, 



Measurement. 



Distril)ution. 



Relation to atmospheric circulation. 



hail, etc. 



Weather. 



/Of different zones and seasons. 

 1^01)servatiun and prediction. 



^ /Of different zones, elevations, and hjcalities. 



^*^^"'^''*= tVariations. 



S. Doc. 148, 58-2 38 



