20 BULLETIX 824, U. S. DEPARTMEXT OF AGRICULTURE. 
SUMMARY. 
Substances that have been used to color or adulterate insect 
powder may be classified as follows : 
To give color: 
Lead chromate. 
Barium chromate. 
Potassium chromate. 
Curcuma (turmeric, the root of Curcuma longa L.). 
Fustic (wood of Chlorophora tinctoria L.). 
Saffron (dried stigmas and tops of the styles of Crocus sativus L.). 
Yellow ocher. 
Other species of flowers: 
Pyrethrum corymbosum W. 
Pyrethrum tenuifolium Tenore. 
Pyrethrum indicum. 
Chrysanthemum segetum. 
Hungarian daisy, Russian daisy, oxeye daisy {Chrysanthemum leucanthemum^. 
Garden daisy (flowers of Bellis perennis L.). 
German chamomile (dried flower heads of Matricaria chamomilla LA 
Roman chamomile (dried flower heads of Anthejnis nobilis L.). 
Corn chamomile (Anthemis arvensis L.). 
Mayweed {Anthemis cotula L.). 
Feverfew (Matricaria parthenium L. Synonyms: Chrysanthemum parthenium iL.) 
Pers. ; Pyrethrum parthaiium Sm.). 
Crotonfiavem. 
Tansy (leaves and tops of Tanacetum vu.lgare L.\ 
Calendula, marigold (dried ligulate florets of Calendula officinalis L.). 
Yellow cat's paw, hourglass weed, yellow-moth weed {Selichrysum arenarium 
DC. Flores Stzchadis citrinx). 
' 'Margherita silvatica " ( Chrysanthem umfrutesceiw). 
Chrysanthemum coronarium. 
Inula pulicaria. 
Chrysanthemum pollens ("false insect flowers"). 
Chrysanthemum inodorum. 
Aiithemis ti1^ctoria. 
Helichrysum italicum. 
Anthemis cotula. 
Spartium junceum. 
Miscellaneous adulterants: 
Almond shells. 
Aloes (inspissated juice of leaves of various species of aloes). 
Arsenic. 
Borax. 
Brick dust. 
Chrome alum. 
' ' Cockle of Levant . * * 
Euphorbium (gum-resin from Euphorbium resinifera Berg.V 
Fleabane, horseweed (leaves and tops of Erigeron canadensis L.). 
Hellebore (powdered root of Veratrum album). 
Jalap (dried tuberous root of Exogonium purga (Wend.) Benth.). 
Nux vomica (dried, ripe seed of Strychnos nux vomica L.). 
