DEPARTMENT BULLETIN NO. 528.-SEASONAL DISTRIBUTION OF FARM LABOR

IN CHESTER COUNTY, PA.-Continued:

Part II.-How to use the foregoing data-

Description of farm selected....

Determining labor requirements of old system..

Replanning cropping system...

Comparative labor requirements..

Comparative returns..

Conclusion......

DEPARTMENT BULLETIN NO. 529.-VALIDITY OF THE SURVEY METHOD OF

RESEARCH:

Introduction...

How farm records are obtained.

Accuracy of the farmer's knowledge.

Accuracy of cost-accounting methods.

Law of error..

Mistaken notions of accuracy.

DEPARTMENT BULLETIN NO. 530.-THE ORGANIZATION AND MANAGEMENT OF

A FARMERS' MUTUAL FIRE INSURANCE CO.:

Introduction....

Purpose of the company.

Business territory.

Membership and voting privilege.

Board of directors...

Officers and committees..

Applications for insurance..

Inspection of risks...............

Form and term of policy.

Limiting the size of individual risks.

Evils of blanket insurance...

Liability of the company and of the insured.

Reduction and cancellation of insurance.

Fees and assessments..

Classification of risks...

Settlement of losses...

Reserve...

Amendment of by-laws and articles of incorporation..

Suggestive organization and business forms...

DEPARTMENT BULLETIN No. 531.-RHIZOPUS ROT OF STRAWBERRIES IN TRANSIT:

Present shipping practices..

Sources of infection by Rhizopus nigricans..

Summary.

Literature cited..

DEPARTMENT BULLETIN NO. 532.-THE EXPANSION AND CONTRACTION OF CON-

CRETE AND CONCRETE ROADS:

Laboratory measurements of expansion and contraction...

Results of expansion and contraction measurements...

Measuring the contraction and expansion of concrete roads.

Results of test measurements at Chevy Chase, Md...

Expansion and contraction of Ohio Post Road....

General discussion of the expansion and contraction of concrete pavements.

Conclusions......

DEPARTMENT BULLETIN NO. 533.-EXTENSION OF COTTON PRODUCTION IN

CALIFORNIA:

Introduction........

Page.

12

13

14

16

Department BULLETIN No. 533.-EXTENSION OF COTTON PRODUCTION IN

CALIFORNIA-Continued:

Community control of gins and oil mills......

Agricultural advantages of community organization.

Conclusions......

Publications on cotton culture..

DEPARTMENT BULLETIN No. 534.-APPLE BLOTCH AND ITS CONTROL:

DEPARTMENT BULLETIN NO. 535.-THE HORSE-RADISH FLEA BEETLE: ITS

DEPARTMENT Bulletin No. 536.—The MediteRRANEAN FRUIT FLY IN HAWAII:

Introduction....

Natural enemies.

Associated insects..

Injury....

Methods of spread..

Host fruits...

DEPARTMENT BULLETIN No. 537.—The ResulTS OF PHYSICAL TESTS OF ROAD-

BUILDING ROCK IN 1916, INCLUDING ALL COMPRESSION TESTS:

Introduction.....

18

21

49

75

77

101

116

Table I.-Results of physical tests of road-building rock in 1916.

Table II.-Results of compression tests of rock to January 1, 1917.

Table III.-Geographical distribution of rock samples tested to January 1,

1917.

Table IV.-General limiting test values for broken stone.

DEPARTMENT BULLETIN No. 538.-SHRIMP: HANDLING, TRANSPORTATION,

AND USES:

Page.

6

7

7

8

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DEPARTMENT BULLETIN No. 538.-SHRIMP: HAND G. TNSPORTATION,

AND USES-Continued:

DEPARTMENT BULLETIN No. 539.-THE LESSER CORN STalk-borer:

Methods of control.

Literature cited...

DEPARTMENT

BULLETIN No. 540.-A FIRST-YEAR COURSE IN HOME ECO-

NOMICS FOR SOUTHERN AGRICULTURAL SCHOOLS:

Introduction.....

Outline of lessons..

Lessons for first year's course.

DEPARTMENT BULLETIN No. 541.-COOPERATIVE ORGANIZATION BY-LAWS:

Importance of by-laws...

Adaptation of by-laws to local needs..

Importance and advantages of incorporation.

Section 6 of the Clayton amendment

Dealing with nonmembers..

Differences between the nonstock and stock form organization.

Financing and perpetuating nonstock organizations.

Section 6 and existing organizations.....

Section 6 organizations and State incorporation laws.

Section 6 and the State antitrust laws..

Adopting the by-laws......

Caution that the department's views of law are not conclusive..

Suggested form of by-laws for a cooperative nonprofit marketing asso-

ciation formed without capital stock.

Suggested form of by-laws for a cooperative marketing association formed

with capital stock..

DEPARTMENT BULLETIN No. 542.--THE POLLINATION OF THE MANGO:

Introduction.....

DEPARTMENT BULLETIN No. 543.-CONTROL OF PEACH BACTERIAL SPOT

IN SOUTHERN ORCHARDS:

Introduction.....

Description of the disease.

Cause of the disease..

Varietal susceptibility.

9

13

16

20

123347

Control experiments..

Summary and conclusions..

DEPARTMENT BULLETIN NO. 544.-THE RED SPRUCE: ITS GROWTH AND

DEPARTMENT BULLETIN NO. 544.-THE RED SPRUCE: ITS GROWTH AND

MANAGEMENT-Continued:

DEPARTMENT BULLETIN No. 545.-IMPORTANT RANGE PLANTS: Their Life

DEPARTMENT BULLETIN NO. 546.-EFFECT OF FALL IRRIGATION ON CROP

Department Bulletin No. 547.—CooperaTIVE PURCHASING AND MARKET-

ING ORGANIZATIONS AMONG FARMERS IN THE UNITED STATES:

Early history and growth of cooperative organization..

Present forms and tendencies.

Statistics of cooperation...

Cooperation in representative States...

Representative types of cooperative organizations.

Financing and business practices..

Agencies which assist cooperation.

Cooperative laws............

Cooperative law summations..

Digest of State cooperative laws..

The Clayton amendment to the United States antitrust laws..

Selected list of publications on cooperative purchasing and marketing.............

DEPARTMENT BULLETIN No. 548.-THE BUSINESS OF TEN DAIRY FARMS IN

THE BLUEGRASS REGION Of Kentucky:

General description of the region from the point of view of dairying..............

Receipts from dairy products, together with labor incomes, on each of 10

farms..

Other sources of income.

Cost of feed...

1

3

11

37

41

50

59

61

62

67

77

78

To what extent dairying may be developed in the bluegrass region

Seven successful dairy farms analyzed and compared..

The farms that failed..

Comparison of the 7 more successful dairy farms with the average of 10....

DEPARTMENT BULLETIN NO. 549.-CROSSTIES PURCHASED AND TREATED IN

1915:

Crossties purchased, 1915.

Preservation...

16

1

6

DEPARTMENT BULLETIN No. 550.-CONTROL of the GRAPE-BERRY MOTH IN
THE ERIE-CHAUTAUQUA GRAPE BELT: