ABSORPTION SPECTRA. 



PLATE 10. 



.62 fil .60 R9 S8 .=;7 .16 .^5 's s;l ?i Rl ^0 49 4S ^^ VH \s > >a IJ >I JO 



Kl .29 28 27 .2t> 25 2* 23 2'J 21 .30 



FIG. 37 



FIG. 38. 



FIG. 39. 



FIG. 40. 



FIG. 37. SEE NO. 81. CURGUMINE S. 



FIG. 38. SEE NO. 41. RESORCINE BROWN. 



FIG. 39. SEE NO. 8. AURANTIA. 



FIG. 40. SEE NO. 32. MET ANIL YELLOW. 



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