Wikimedi'Òc

The Binet-Simon measuring scale for intelligence; (IA binetsimonmeasur00ayre).pdf - Fæ

The effect of promotion rates on school efficiency (IA effectofpromotio00ayre).pdf - Fæ

The effect of promotion rates on school efficiency (IA effectofpromotio01ayre).pdf - Fæ

Laggards in our schools; a study of retardation and elimination in city school systems (IA laggardsinoursch00ayre).pdf - Fæ

The measurement of educational processes and products (IA measurementofedu00ayres).pdf - Fæ

Open air schools (IA openairschools02ayre).pdf - Fæ

The relation of physical defects to school progress (IA relationofphysic00ayre).pdf - Fæ

A scale for measuring the quality of handwriting of adults (IA scaleformeasurin00ayre).pdf - Fæ

Some conditions affecting problems of industrial education in 78 American school systems (IA someconditionsaf00ayre).pdf - Fæ

Some conditions affecting problems of industrial education in 78 American school systems (IA someconditionsaf01ayre).pdf - Fæ

Child accounting in the public schools (IA childaccountingi00ayrerich).pdf - Fæ

The Cleveland school survey; summary volume (IA clevelandschools00ayreiala).pdf - Fæ

Health work in the public schools (IA healthworkinpubl00ayrerich).pdf - Fæ

Laggards in our schools; a study of retardation and elimination in city school systems (IA laggardsinoursch00ayrerich).pdf - Fæ

Medical inspection legislation (IA medicalinspectio00ayre).pdf - Fæ

The money cost of repetition versus the money saving through acceleration (IA moneycostofrepet00ayre).pdf - Fæ

The public library and the public schools (IA publiclibrarypub00ayrerich).pdf - Fæ

The public schools of Springfield, Illinois; educational section of the Springfield survey conducted under the direction of Leonard P. Ayres, PH. D (IA publicschoolsofs00ayre).pdf - Fæ

The relation between entering age and subsequent progress among school children .. (IA relationbetweene00ayre).pdf - Fæ

The relative responsibility of school and society for the over-age child .. (IA relativeresponsi00ayre).pdf - Fæ

A scale for measuring the quality of handwriting of school children (IA scaleformeasurin00ayrerich).pdf - Fæ

School organization and administration (IA schoolorganizati00ayrerich).pdf - Fæ

Room E-10, Colonel L.P. Ayers, Intelligence Section, Hotel Crillon, Paris, Seine, France - DPLA - 04c370df626831458b4bb4be91cb9f14.jpg - DPLA bot

Presidential Party aboard the U.S.S. George Washington en route to the Peace conference. Colonel L.P. Ayers, General Staff, U.S.A - DPLA - 452e94a2a66c010dd94fd8d61ab2fd2c.jpg - DPLA bot

Constant and variable occupations and their bearing on problems of vocational education (IA cu31924031754421).pdf - Fæ

The public schools of Springfield, Illinois; educational section of the Springfield survey conducted under the direction of Leonard P. Ayres, PH. D (IA cu31924031757812).pdf - Fæ

Laggards in our schools; a study of retardation and elimination in city school systems (IA cu31924032717609).pdf - Fæ

Leonard P. Ayres (cropped).jpg - Maliepa

ANCExplorer Leonard Porter Ayres grave.jpg - Maliepa