01032cam a22002531 4500 e 11001336 DLC 20260227111156.0 cr_||||||||||| 801027r19091910nyu 000 0 eng c e 11001336 (OCoLC)6868524 Library, U.S. Bur. of Education Vi Vi DLC LC4231 .A8 Ayres, Leonard Porter, 1879-1946. The relation of physical defects to school progress [by] Leonard P. Ayres ... New York, Dept. of Child Hygiene of the Russell Sage Foundation [1910?] 9 p. diagrs. 23 cm. [Russell Sage Foundation. Dept. of Child Hygiene. Pamphlets] no. 61 "Reprinted from the Eleventh annual report of the city superintendent of schools, New York City, 1909." Also available in digital form on the Internet Archive Web site. Children with disabilities Education. http://hdl.loc.gov/loc.gdc/scd0001.00195994729 19209 19209