Ayres, Leonard Porter,  1879-1946. <br/><br/>
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 .
<br/><br/> "Reprinted from the Eleventh annual report of the city superintendent of schools, New York City, 1909." 
<br/><br/>
<br/><br/><label>LCCN: </label>e  11001336  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Children with disabilities--Education.
<br/><br/><label>LC Class. No.: </label>LC4231  / .A8