AGBICULTITEAL CHEMISTS Y AGKOTECHNY. 41 5 



Terret-Bourret, Grenache. and Aramon, the maximum glucose content was 

 127.62 and the minimum 93.75 gm. per liter of must. For levulose the maxi- 

 mum was 125.58 and the minimum SS.65 gm. The maximum glucose-levulose 

 ratio was 1 : 1.1 and the minimum 1 : 0.93. 



About the constituents of cauliflower, R. Dmochowski and B. Touless 

 {Jour. Landic, 58 \1910), Ao. 1. pp. 27--iii. — Cauliflower contains cellulose, 

 glucose, fructose, pentosans, and methyl pentosans. While cane sugar could not 

 be detected, it was possible to note a hydrolizable carbohydrate which may 

 possibly be of the same nature as that noted by Tanret ( E. S. R.. 22. p. 112). 

 A glucuronic acid reaction was obtained. 



The constituents of red clover flowers, F. B. Poweb and A. H. Salway 

 {Jour. Chem. Soc. [London]. 97 (1910), So. 568. pp. 2Sl^5i). — Red clover 

 flowers {TrifoUum pratense) were examined with the following results: 



On treatment of an alcoholic extract of the flowers with steam an essential 

 oil was obtained which yielded furfurol and with its constants d 20 '20=0.9476 : 

 aD+4°0' in a 1-dcm. tube. 



The water-soluble substances in the alcoholic solution isolated were as fol- 

 lows : A sugar yielding pheuylglucusazone ( m.p. 205° C), salicylic acid, p-cou- 

 maric acid, isorhamnetin (295^ C. > : some new phenols — pratol. CisH^OitOH) 

 .O.CH3 (253° C). pratensol, CirHsOiiOHb (210' C.) : a new glucosid— trifolin 

 (which on hydrolysis yields a yellow coloring matter — trifolitin. and rham- 

 nose) : isotrifolin: and a glucosid of quercetiu. 



The portion of the alcoholic extract insoluble in water consisted chiefly of 

 resin-like bodies and contained myricyl alcohol, heptacosane. hentriacontane. 

 sitosterol, trifolianol, and a mixture of fatty acids which were chiefly palmitic, 

 stearic, and linolic. with small amounts of Itnolenic. oleic, and isolinolenic 

 acids. 



The importance of chem^ical soil investigation in relation to agrogeological 

 work and soil charting, A. vox 'Sigmoxd (Compt. Rend. Conf. Intcrnat. 

 Agrogeol. [Budape.s:t]. 1 {1909), pp. 225-2.'iS. figs. S: Separate, pp. 19. figs. S).— 

 The author draws attention to the imixirtance of utilizing the results of chem- 

 ical analysis for agrogeological research and for the charting of soils. Just as 

 much stress should be laid on the chemical results as is done in i^etrographic 

 research. The chemical analysis of the soil is further a measure for the activi- 

 ties of the soil-forming factors therein. Particular reference is made to the 

 alkaline soils Bekes-Csaba (.szik) and Cservenak (good wheat soil). 



The recommendations for the determinations to be made are as follows: (1) 

 Total water-soluble salts by the electrical conductivity method: (2) the total 

 alkaline carbonate: (3) the total water-soluble alkaline carbonate: (4> titra- 

 tion of the chlorids by the ordinary methods: and <5> by difference the 

 amount of sulphates. 



Methods of field investigations of soils (szik) containing soda, A. vox 

 'SiGMOXD {Compt. Rend. Conf. Internot. Agrogeol. [Budapest], 1 {1909) pp. 

 247-256. figs. S; Separate, pp. 10. figs. S). — Attention is called to the use of the 

 electrical conductivity apparatus for measuring the salt content in soils and 

 the apparatus for extracting the salts, as employed by the Bureau of Soils of 

 this Department (E. S. R.. 9. p. 535). See also a previous note (E. S. R.. 13. 

 p. 229). 



The author proposes the following classifications for the total salt content of 

 soils : First class, includes those which contain no more than 0.1 per cent : sec- 

 ond class, those between 0.1 and 0.25 per cent: third class, those from 0.25 to 

 0.5 per cent : and fourth class, all soils over 0.5 per cent. Soil containing more 

 than 0.5 per cent of salts is considered infertile. 



