X PREFACE 



Asylum for the Blind at Batavia, New York ; Almon 

 H. Cooke, M.D. ; Myrtle M. Massey, M.D., and Thomas 

 C. Phillips, D.D.S., for helpful suggestions in regard 

 to omissions and improvements. Acknowledgments 

 are also due Francis J. Flagg, formerly Principal of 

 School No. 25 ; Miss Margaret Brennan, Principal 

 of School No. 13 ; Miss Ida Kempke, Method Teacher, 

 Buffalo State Normal School ; Charles P. Alvord, 

 Principal of Teachers' Training School (all of Buffalo, 

 New York) ; and Richard A. Searing, Superintendent 

 of Education, North Tonawanda, New York, for care- 

 ful reading and criticism of the manuscript. 



