CONTENTS 



Pa*. 



EXAMINATION OP HYDROGEN DIOXID SOLUTIONS. By L. F. Kebler, L. E. 



Warren, and E. A. Ruddiman 5 



Historical note 5 



Plan of the investigation 7 



Investigation made in Washington 8 



Determination of hydrogen dioxid 8 



Preservatives 10 



Analytical results 11 



Investigation made in Nashville 11 



Comments by manufacturers 11 



Discussion of results 21 



Hydrogen dioxid 21 



Acetanilid 21 



Acidity 22 



Nonvolatile matter 23 



THE PURITY OF GLYCERIN. By L. F. Kebler and H. C. Fuller 24 



Scope of investigation 24 



Discussion of methods and results 25 



Analytical data 26 



Comments by manufacturers 29 



Conclusions 32 



References 33 



NOTES ON Two IMPORTANT ALKALOIDAL REACTIONS. By H. C. Fuller 36 



THE SEPARATION AND IDENTIFICATION OF SMALL QUANTITIES OF COCAIN. By 



H. C. Fuller 41 



THE DETERMINATION OF MOLYBDIC TRIOXID. By B. Herstein 44 



A METHOD FOR TESTING AMMONIUM SALTS. By B. Herstein 47 



CHARACTER OF SAMPLES OF BEESWAX SUBMITTED WITH BIDS. By L. F. 



Kebler and F. M. Boyles 49 



Introduction 49 



Methods of analysis 49 



Tabulated results of examination 51 



3 



