CONTENTS. 



PAGE 



i. Organization of Employers and Employees . . . . 159 



John B. Phillips, Ph.D., 



Professor of Economics and Sociology 



2. The Stereoscope as a Method of Working out the 

 Principles of Visual Interpretation 175 



Joseph Hershey Bair, Ph.D., 



Professor of Psychology and Education 



3. Tables for the Identification of Rocky Mountain 

 Cocchxe (Scale Insects and Mealy-Bugs) T89 



T. D. A. Cockerell, 



Lecturer on Entomology 



