/l/ Aseptically reared on synthetic diets. /5/ Vitamin B^. /5/ A generic term including cyanocobalamin 

 (vitamin Bj^2) ^^^ ^^s hydrogenation product known variously as B]^2a °'" B22>i which has approximately the 

 same biological activity. /6/ Folic acid is not a chemical entity but a generic term for pteroylglutamlc 

 acid (Folacin), vitamin M, vitamin B^,, factor U, L. casei factor, Norite eluate factor. /T/ Used here sis 

 a generic term for nicotinic acid (niacin) and nicotinic acid amide (niacinamide). /8/ Includes pyridox- 

 ine, pyrldoxal, pyridoxamlne. /9/ Cholesterol may be required by all the forms listed but is shown as 

 required only in those forms in which specific experiments have indicated its need. /lO/ Unidentified 

 substances obtained from yeast, /ll/ May be peirtially replaced by lecithin oil from hydrollzed plasma 

 (FSF)or oleic acid. /l2/ Cobalamin Eddition produces higher percentage of pupation. /l5/ May be replaced 

 by an increased amount of xanthopterin, /ik/ Unidentified substance obtained from yeast and comleaves. 

 /15/ Unidentified substances obtained from yeast or liver. /16/ Glutathione and unidentified substance 

 obtained from yeast and liver. 



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