the social standing and the income of the groups studied?

6. In _The Child_ of August, 1920, Miss Julia C. Lathrop
summarizes the Child-welfare Standards proposed by the
Children's Bureau as follows:

(1.) Minimum standards for children entering employment:

A. Minimum age, sixteen years in all employments;
eighteen years in mines and quarries; twenty-one
years for girls as telephone or telegraph messengers;
twenty-one years for special-delivery service of U.S.
Post Office; prohibition of minors in dangerous,
unhealthy, or hazardous occupations.

B. Minimum education, compulsory education for all between
seven and sixteen years for nine months of every year.
Between sixteen and eighteen years those legally
employed to attend Continuation Schools at least eight
hours a week.

C. Physical minimum, annual examination of all working
children under eighteen years of age; prohibition of
work unless found to be normal in physique and health.

D. Hours, minors not more than eight hours a day or
forty-four hours a week, and prohibition of
night-work. Continuation School attendance to count as
part of working-day.

E. Wages, minimum determined by wage commission or similar
agency.

F. Vocational guidance and employment supervision.

G. Employment certificate as needed protection against
industrial exploitation.

(2.) Minimum standards for public protection of health of
mothers and children:

A. Maternity aids; B. Infants; C. Pre-school children; D.
School children; E. Adolescent children.

(3.) Minimum standards in relation to children needing special
care:

A. Adequate income; B. Assistance to mothers; C. State
supervision; D. Removal of some children from their
homes; E. Home care; F. Principles governing
child-placing; G. Children in institutions; H. Care
of children born out of wedlock; I. Care of
physically defective children; J. Mental hygiene and
care of mentally defective children; K. Juvenile
courts; L. Rural social work; M. Scientific