erovnuli-samecniero-biblioteka Search for 'au:"Ayres, Leonard Porter,"'

Open air schools

By Ayres, Leonard Porter,.
New York, Dept. of School Hygiene 1910 .
13 p. , Reprinted from the Proceedings of the Albany 1910 meeting of the Committee on the Prevention of Tuberculosis of the New York State Charities Aid Association. 23 cm..

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The relation of physical defects to school progress

By Ayres, Leonard Porter,.
New York, Dept. of Child Hygiene of the Russell Sage Foundation 1910 .
9 p. , "Reprinted from the Eleventh annual report of the city superintendent of schools, New York City, 1909." 23 cm..

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The measurement of educational processes and products,

By Ayres, Leonard Porter,.
New York, Division of Education, Russell Sage Foundation 1912 .
1 p. l., 9 p. , "Address delivered before the Harvard Teachers' Association, Cambridge, Mass., March 9, 1912." 23 cm..

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The effect of promotion rates on school efficiency,

By Ayres, Leonard Porter,.
New York City, Division of Education, Russell Sage Foundation, 1913 .
13 p. , Reprinted from the American school board journal, May, 1913. 23 cm..

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Psychological tests in vocational guidance,

By Ayres, Leonard Porter,.
New York city, Division of education, Russell Sage foundation, 1913 .
1 p. l., 6 p. , Reprinted from the Journal of educational psychology, April, 1913. 23 cm..

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The spelling vocabularies of personal and business letters /

By Ayres, Leonard Porter,.
New york city : Division of education, Russell Sage foundation, 1913 .
14 p. : 23 cm..

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

By Ayres, Leonard Porter,.
New York, Division of education, Russell Sage foundation, 1914 .
22 p. 23 cm..

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Constant and variable occupations and their bearing on problems of vocational education.

By Ayres, Leonard Porter,.
New York City, Division of Education, Russell Sage Foundation 1914 .
11 p. 23 cm..

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A scale for measuring the quality of handwriting of adults

By Ayres, Leonard Porter,.
New York city, Division of education, Russell Sage foundation 1915 .
11 p. , Measuring scale for adult handwriting: 1 fold. sheet laid in. 23 cm..

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Leonard Porter Ayres papers,

By Ayres, Leonard Porter,.
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2,200 | 25 | 2 | 10

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