10 DEPARTMENT OF AGRICULTURE BULS. 1301-1325 



Page 

 Department Bulletin No. 1324. — The Oviposition Response of 

 Insects: 



Introduction 1 



Internal physiological condition affecting oviposition 2 



Nutrition 2 



Age 2 



Fertility 2 



Internal periodicities 3 



External influences affecting oviposition 3 



Temperature 3 



Humidit v 4 



Light __"_ 5 



Air and water currents _ _ 6 



Surfaces 6 



Odorous substances 8 



Contact with chemical substances 10 



Discussion 10 



Conclusions 13 



Literature cited 13 



Department Bulletin No. 1325. — -Marketing Onions: 



Development of onion production 1 



Classes and types 2 



Commercial onion regions 4 



Harvesting, grading, and packing 11 



Financing the crop 16 



Local sales methods 18 



Cooperative marketing 20 



Storage 21 



Transportation 24 



Seasonal movement 26 



Areas of distribution 26 



Wholesale marketing 31 



Features of city markets 33 



Market preferences 42 



Supplies of large cities 42 



Seasonal consumption of cities 44 



Volume of shipments 44 



Price tendencies 46 



Forecasting the market 49 



Market information 50 



Cost of marketing 51 



Imports 52 



Exports 55 



Summary 56 



Tables of statistics 57 



Onion bulletins and circulars 69 



