8 DEPARTMENT OF AGRICULTURE BULS. 1326-1350 



Department Bulletin No. 1342. — Effect of Feeding Green Rye p a ge 

 and Green Cowpeas on the Flavor and Odor of Milk — Continued. 



Experimental feeding of green cowpeas 5 



Procedure 5 



Feeding 15 pounds one hour before milking 6 



Feeding 30 pounds one hour before milking 7 



Feeding 30 pounds immediately after milking 7' 



Conclusions 8 



Department Bulletin No. 1343. — Improved Oat Varieties for the 

 Corn Belt: 



Introduction 1 



History and methods of oat experiments 2 



Albion (Iowa No. 103) , 3 



History and description 3 



Yields of Albion 5 



Ratio of grain to straw 9 



Rate-of-seeding experiments 9 



Richland (Iowa No. 105) 10 



History and description 10 



Yields of Richland 11 



Comparative yields of Richland and Albion 13 



Rate-of-seeding experiments 14 



Iowar 15 



History and description 15 



Yields of Iowar 17 



Ratio of grain to straw 19 



Rate-of-seeding experiments . 20 



Iogren 20 



History and description 20 



Yields of Iogren 21 



Rate-of-seeding experiments 23 



Yields of other varieties at the Iowa station 23 



Yields of Albion, Richland, and Iowar oats outside of Iowa 25 



Summary . 29 



Department Bulletin No. 1344. — Effect of Various Factors on 

 the Creaming Ability of Market Milk: 



Reasons for investigation 1 



Methods used 3 



Effect of pasteurizing market milk 3 



Effect of heating milk to various temperatures • 4 



Effect of heating and holding milk for 30 minutes at various tempera- 

 tures at pasteurizing plants 5 



Effect of pasteurizing fresh milk 7 



Effect of pasteurizing old milk 7 



Effect of partially cooling pasteurized milk in vat or tank 9 



Effect of the temperature to which milk is cooled after pasteurization _ 10 



Effect of storage temperature 11 



Rapidity of creaming of raw and pasteurized milk 13 



Effect of age and recreaming of raw milk 14 



Effect of recreaming pasteurized milk 15 



Effect of pumping milk - 16 



Effect of holding milk and of agitating it at various temperatures 



before and after pasteurization 18 



Effect of clarifying raw rnilk 21 



Effect of filtering milk 21 



Influence of various shapes of milk bottles on depth of cream layer. _ 22 



Summary and conclusions 23 



Department Bulletin No. 1345. — Saltbushes and Their Allies in 

 the United States: 



Introduction 1 



The saltbushes and their allies 2 



Results of examination and analysis 3 



Goosefoot family 3 



Pigweed family 28 



Buckwheat family 30 



Common names and their scientific equivalents 37 



Literature cited 38 



