9 



qucntly in this monograph that he hcu-. (,, sii_:.iic.-l , for the sake of 

 uniformity, the following pronunciations which arc believed to be in 

 keeping with the best modern Kn.dish usage. 



Carotin :K fir' 6- tin. 



Carotinoid = Kar" 6 - tin - oid'. 



Lipochrome = L I p' 6 - k r 6 m. 



Chromolipoid = Kr6m-6-lip'6id. 



Chromatogram - : K r 5 m" - a t o - g r a m'. 



In conclusion the author wishes to acknowledge his indebtedness to 

 his colleague, Dr. R. A. Gortner, for many helpful criticisms in the 

 preparation of the manuscript; to Dr. Josephine E. Tilden of the 

 Department of Botany, University of Minnesota, for classifying the 

 algae in which carotinoids occur, and to Mr. Lloyd A. Jones, of the 

 Eastman Kodak Co., for information regarding the light filters devised 

 in the Eastman Research laboratories during the war. 



ST. PAUL, MINN. 

 July 1, 1922. 



