IV 7 CONTENTS—ILLUSTRATIONS. 
Cocoa preparations—Continued. 
Methods of analyses reported by various chemists 
Summary of results obtained by various chemists.-.---.-.--....-....-- 
Analyses of cocoa beans made by various chemists. -...........--..-..- 
Analyses of the husks from cocoa beans reported by various chemists. - 
Analyses of commercial preparations of cocoa beans reported by various 
CMEMMISUS 5:2 fire oes iaiseisve a Sore e cre ates mele feeccaret eee oho rea a ee 
Ash analyses reported by various chemists.--...--2...-..2..---=:----:-- 
Results of the examination of cocoa preparations in the laboratory of 
LhewW.5.-Department of Aericul tuners. ce esse ner = me = ae eee 
Description of samples of cocoa preparations examined in the laboratory 
of the U. S. Department of Agriculture. -... Bae eet greg eae an a eg 
Analyses of cocoa preparations made in the laboratory of the U. S. De- 
partinentot Aoricul tures: ec6 scare eeia nc eet ee eee eee 
Discussion of resulis obtamed 22. co) see = cai eer eee 
Appendix A.—Bibliography of the literature of tea, coffee, and cocoa prepa- 
MAMMO MS tye oS hE aoe a cbse ioe okay Sia Sues erat erage oie eae See eee eee ees 
Appendix B.—United States tea adulteration law.....--..-.-.--..----.---- 
Appendix C.—Abstracts from the Italian law relating to the adulteration of 
MODUS Ce ce ue apcle nga ecitlne see le ee Bhs ees hole nn cere ae Ome a pops 
aise e = eee es ees oe = = Sela 
LIST OF ILLUSTRATIONS. 
Plate XX XIX. Genuine tea leaves and possible adulterants ....-...-.--..-- 
XL. Genuine tea leaves and possible adulterants -.....-.....---- 
XLI. Tea leaf, upper and lower surface of epidermis...-.-...-...- 
XLIK, Stone cell of tea leaf; seed coat of coffee. ---..-----. =... ae 
XE Raw: coffee: wheat bran, outer layer 22-- 222 32s eee ee 
MIGLV; Wheat bran, second and oluten\ layers 334025 eee eee ee 
XLY. Roasted chicory: parenchyma and milk vessels; pitted cells- 
XLVI. Cocoa, epidermis of husk; cocoa husks, thick walled cells-. 
XLVII. Cocoa husk, thin membrane; section of cotyledon of cocoa.. 
