XIV CONTENTS. 



CHAPTER XIII. 



DBXTRINS AND SUGARS, GLUCOSES, CANE-SUGAR, MALTOSE, &C. 



Literature. Soluble carbohydrates. Qualitative test for fermentable 

 sugars. Estimation of fermentable sugars. Bemoval of dextrius. Tests 

 for glucoses, cane-sugar, maltose, mannite, pentoses. Estimation of 

 glucoses, cane-sugar, maltose. Calculation of results. Experiments on 

 sugars. Testing leaves of Tropceolum majus for various sugars. Estima- 

 tion of fermentable sugars in leaves and roots of Beta vulgaris. Estima- 

 tion of various sugars in leaves of Beta vulgaris under different conditions, 



pp. 258—271. 



CHAPTER XIV. 



STARCH. CELLULOSE. 



Literature. Estimation of starch and cellulose. Experiments on 

 starch. Estimation of starch in the potato by different processes— 

 in leaves of Acer pseudo-platanus under different conditions. In grains 

 of wheat before and after germination . . . pp. 272 — 276, 



CHAPTER XV. 



ORGANIC ACIDS AND SALTS. 



Literature of organic acids. Qualitative examination for organic 

 acids. Determination of ' acidity ' of extracts. Literature of inorganic 

 salts. Preparation of ash of tissues. The constituents of the ash. 

 Estimation of chlorine — phosphoric acid — alkalies — in ash. Estimation 

 of calcium oxalate in tissues. Experiments on organic acids. Compari- 

 son of acidity of juice from old and young rhubarb petioles — of acidity 

 and amounts of sugars in juice from ripe and unripe apples. Experi- 

 ments on inorganic salts. Weights of ash from normal and etiolated 

 leaves. Estimation of phosphoric acid and alkalies in leaves and grains 

 of barley — of calcium oxalate in young and old leaves of Sempervivum 

 tectorum pp. 277 — 284. 



