246 



Page. 



Ponceau, testing for pure color 40 



Potash work, instructions 121-122 



recommendations 183 



report by B. B. Ross, referee . 121-125 



Potassium determination in soils, comparison of methods, tables 119 



Preservatives, report of W. D. Bigelow, referee 64-78 



Proteids, meat, separation, report of P. F. Trowbridge, associate referee 61-64 



Pyrites in phosphate rock, effect of hydrochloric acid. 146-147 



Quartz, use in saccharimetric work 226 



Reagents, chemical, testing report of L. F. Kebler, chairman of committee.. 127-128 



Recommendations, determination of acids in wine 24-25 



casein in milk 168 



f usol oil in distilled liquors 27 



of referees, report of Committee A 183-184 



B 187-189 



C 126-127 



on condensed milk 158-159 



' . flour analysis 58 



identification of colors in foods 42 



method for separation of iron and aluminum in ash of 



plants 93 



nitrogen work 91 



paprika analysis 38 



soils analysis 119-120 



sugar 180 



tea, coffee, and cocoa work 81 



Reducing sugars, determination in wine, methods 15-16 



Referees and associate referees for 1908-9, directory 234-235 



Resolutions committee report ( . 189 



Rhodamin, testing for pure color 39 



Richardson, W. D., analyst, comments on potash determination 124 



Robb, J. Bernard, analyst, comments on nitrogen work 89 



Rockweed, pentosan determination 159-160 



Rose, Bengal, testing for pure color 40 



Ross, B. B., report as referee on potash 121-125 



Rudnick, Paul, analyst, comments on nitrogen work 89 



potash determination 123 



Yon Grueber method analysis of phos- 

 phate rock 146 



Rusby, H. H., paper on "The Macroscopy and microscopy of drugs " 136-139 



Rye flour. See Flour. 



Saccharimetric observations, unification, paper 221-228 



Saffron adulteration, dangers 138 



testing for pure color 39 



Salant, William, paper on animal experimentation with medicinal prepara- 

 tions 103-105 



Salicylic acid determination, methods 64-68 



solvents, comparative efficiency 65 



Saponins, biological testing 104 



Seeker, A. F., analyst, comments on lemon extract 30 



and R. E. Doolittle, paper on "The possibilities of muscovado 



sugar as an adulterant for maple products " 196-198 



and R. E. Doolittle, paper on "Winton lead number of mix- 

 tures of cane and maple sirup' ' 198-199 



Sellier apparatus, for acid determination in wine, description 20-21 



Shanley, E. J., and A. L. Winton, paper on "Simple tests for detecting bleach- 

 ing in flour " 216-217 



Shedd, O. M., analyst, comments on inorganic plant constituents 93 



potash determination 124 



Silver benzoate method of determination of benzoic acid 74-76 



Sirup, cane and maple mixtures, Winton lead number, notes 198-199 



Sirups, glucose detection, report by A. H. Bryan, referee 180-183 



Slag, basic, valuation of phosphoric acid, paper by H. D. Haskins 151-152 



Thomas. See Thomas slag. 



