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   L:: Leonard Porter Ayres : download and read ebooks
A scale for measuring the quality of handwriting of school children

An index number for state school systems

Child accounting in the public schools

Health work in the public schools

Medical inspection legislation

Medical inspection legislation, comp

Open air schools

Open-air schools

School organization and administration

Some conditions affecting problems of industrial education in 78 American school systems

The Cleveland school survey; summary volume

The Cleveland survey of the administration of criminal justice [electronic resource] : an address delivered before the City Club of Cleveland, February 18, 1922

The money cost of repetition versus the money saving through acceleration

The prospects for building construction in American cities

The public library and the public schools

The public schools of Springfield, Illinois; educational section of the Springfield survey conducted under the direction of Leonard P. Ayres, PH. D

The relation between entering age and subsequent progress among school children ..

The relation of physical defects to school progress

The relative responsibility of school and society for the over-age child ..

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