_____________________________________________________________ | | | | | | | Original seed | Malt or | Pentosane in | | | | germinated product | | | | | |_______________| | | | | | | | | A | B | A | B | |________|_______________|____________________|_______|_______| | | | | | | | Barley | 500.00 | 434.88 | 39.58 | 40.38 | | " | 500.00 | 442.26 | 40.52 | 41.17 | | Peas | 300.00 | 286.60 | 15.25 | 15.97 | |________|_______________|____________________|_______|_______| The authors conclude generally that there is a slight absolute increase in the pentosanes, and that the pentosanes do not belong to those reserve materials which undergo destructive oxidation during germination. In this they confirm the previously published results of De Chalmot, Cross and Bevan, and Gotze and Pfeiffer. UEBER DEN GEHALT DER BAUMWOLLE AN PENTOSAN. H. SURINGAR and B. TOLLENS (Ztschr. angew. Chem., 1897, I). ~PENTOSANE CONSTITUENTS OF COTTON.~ (p. 290) It has been stated by Link and Voswinkel (Pharm. Centralhalle, 1893, 253), that raw cotton yields 'wood gum' as a product of hydrolysis. The authors were unable to obtain any pentoses as products of acid hydrolysis of raw cotton, and traces only of furfural-yielding carbohydrates. They conclude that raw cotton contains no appreciable quantity of pentosane. FOOTNOTES: [8] This paper appears during the printing of the author's original MS. [9] This paper appears during the printing of the author's original MS. SECTION VI. THE LIGNOCELLULOSES (p. 131) ~Lignocellulose Esters.~--By a fuller study of the ester reactions of the normal celluloses we have been able to throw some light on the constitutional problems involved; and we have extended the investigations to the jute fibre as a type of the lignocelluloses, from the results of which we get a clearer idea of the relationships of the constituent groups. Taking the empirical expression for the complex, i.e. the entire lignocellulose, the formula C_{12}H_{18}O_{9}, we shall be able to compare the ester derivatives with those of the celluloses, which we have also referred to a C_{12} unit. But we shall require also to deal with the constituent groups of the complex, which for the purposes of this discussion may be regarded as (a) a cellulose of normal characteristics--cellulose alpha; (b) a cellulose yielding furfural on boiling with condensing acids--cellulose beta; and (c) a much condensed, and in part benzenoid, group which we may continue to term the lig_none_ group.