VOL. LI. 



PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



No. 311 



CONTENTS. 



PAGE 



Report of the Committee on Colour- Yision. [Plate 2] . . . . . 281 

 Evidence taken by the Committee . . • . . . . . 306 

 Letters received by the Committee bearing on the Enquiry . . . 357 

 Appendices. [Plate 3] .368 



vt- 5% : 



July 19, 1892. 



Price Four Shillings. 



