ABSO'RPTION SPECTRA. 



PLATE 15. 



FIG. 57. 



FIG. 58. 



FIG. 59. 



FIG. 60. 



FIG. 57. SEE NO. 22. ERIKA B. 

 FIG. 58. SEE NO. 108. EOSINE, YELLOWISH. 

 FIG. 59. SEE NO. 112. ERYTHROSINE. 

 FIG. 60. SEE NO. 115. PHLOXINE. 



HELIOTVPt CO., SOSTOn. 



