CONTENTS. 







Department Bulletin No. 301. — Silver-fox Farming in Easte n North 

 America: Page- 

 Introduction 1 



The silver fox 2 



History of domestication 4 



Area suited for fox farming 6 



Ranch sites 8 



Inclosures 9 



Food 15 



Breeding 18 



Behavior in captivity 21 



Handling foxes 22 



Sanitation 23 



Improved strains 25 



Accessories 28 



Costs 30 



Profits 31 



Preparation of skins 31 



Legal aspects 32 



Summary 34 



Department Bulletin No. 302. — Apple-market Investigations, 1914-15: 



Introduction 1 



Conditions preceding the movement of the crop 2 



Studies in the markets 4 



Grade and package laws 13 



Cold-storage holdings and movement 14 



Pacific northwest apples, via the Panama Canal 16 



Export markets 17 



Conclusion 21 



Appendix 23 



Department Bulletin No. 303. — A Bacteriological Study of Retail Ice 

 Cream: 



Introduction 1 



Objects of this investigation 2 



Methods of examination 2 



The acidity of ice cream 3 



The number of bacteria 4 



The groups of bacteria 7 



Colon bacilli in ice cream 15 



Summary and conclusions 22 



Bibliography 24 



Department Bum-etin No. 304. — Land drainage by Means of Pumps: 



Introduction 1 



Effectiveness of drainage reclamation 2 



Drainage pumping in northern Europe ." 4 



Past experiences in the United States f> 



Drainage by pumping in the Mississippi Valley 7 



Present .status of drainage by pumping 55 



Summary 56 



Publications of the United States Department of Agriculture relating to 



land drainage (!0 



3 



