6 DEPAKTMENT OF AGRICULTURE BULS. 501-525. 



Department Bulletin No. 520. — ^A System op Accounting for Cotton 



Warehouses: Page. 



Introduction 1 



Description of the system 2 



Operation of the system 11 



Arrangement of bales in the warehouse 13 



Conclusions 13 



Department Bulletin No. 521. — Courses in Secondary Agriculture for 

 Southern Schools: 



Introduction 1 



Adaptation to local conditions 1 



Use of texts and references 2 



Use of illustrative material 3 



Distribution of time and credit 3 



• The home projects 3 



Outline for soils and crops, first year 4 



Suggestions for home projects, first year 35 



Laboratory equipment for soils and crops 35 



Texts and references for soils and crops 36 



Outline for animal husbandry, second year 37 



Suggestions for home projects in animal husbandry 51 



Equipment for animal husbandry 51 



Texts and references for animal husbandry 52 



Department Bulletin No. 522. — Characteristics and Quality of Montana- 

 grown Wheat: 



Introduction 1 



Future of wheat production in Montana 2 



Marketing conditions in Montana 3 



Varieties and tjqjes of wheat grown in Montana 4 



Grading Montana wheat 4 



Wheat quality 6 



Color of fioiir and bread 7 



Water absorption 7 



Loaf volume and textiire 7 



Hard winter wheat 7 



Correlation of physical characters and milling quality 11 



Comparisons with the hard winter wheats of other sections 17 



Montana hard spring wheat 21 



Western red and white wheat 25 



Montana durum wheat 30 



Summary of the characteristics of the five classes of Montana wheat 33 



Department Bulletin No. 523. — Utilization of Ash: 



Introduction 1 



Commercial species 2 



Demand and supply 7 



Characteristics of ash wood 15 



Utilization by industries 27 



Lumber and stumpage values 39 



Summary of important points 47 



Appendix 4 



Department Bulletin No. 524. — Detection of Lime Used as a Neutral- 

 izER IN Dairy Products: 



Introduction 1 



Methods of analysis 3 



Analysis of unneutralized creams 5 



Analysis of dairy products made from unneutralized creams 6 



Influence of liming on composition of dairy products 8 



Effect of impurities in the salt on the percentage of calcium oxid in the 



salt-free ash 15 



Interpretation of results 19 



Use of hme to renovate old storage butter 20 



Summary 22 



Department Bulletin No. 525. — Experiments in the Determination op 

 the Dige.stibility op Millets: 



Introduction 1 



Preparation of food 2 



Analytical methods 3 



Details of the digestion experiments 3 



