40 



Journal of Agricultural Research voi. xviii, no. i 



Table II. — Further comparisons between the ice-water and the alcohol method, showing 

 increase in acidity which takes place in ground cereals upon standing ^ 



[Determinations made by Mr. M. G. Mastin] 



Sample No. 



Unsulphured oats: 



15 



16 



17.. 



fi8.. 

 Ii8r. 



19. 

 20. 



22r. 



23... 

 23r. . 

 23rr. 



124.. 

 l24r- 



125.. 

 l25r. 



r26. . 

 l26r. 



Izyr. . 

 Uyrr. 



28r.. 



zgr 



3or 



31 



32 



33 



34 



35 



36 



37 



38 



39 



40 



41 



42 



Sulphured oats: 



155 



i6s 



17s.. 



f i8s. . 

 \i8sr. 



19s. 

 20s. 



|2IS. . 



l2isr. 



Crop year. 



916 

 916 



915 

 915 

 916 

 915 



91S 

 915 



915 



914 

 914 

 914 



914 

 914 



914 

 914 



914 

 914 



914 

 914 



914 

 914 



915 

 916 

 916 

 916 

 916 

 916 

 916 

 916 

 916 

 916 

 916 

 916 

 915 



916 



915 

 916 



915 



916 

 9IS 



915 

 9IS 



Schindler's 



alcohol 

 extraction 

 method. 



42.9 

 27-5 

 39- o 

 30.0 



39- o 

 32.0 



27. 2 

 104.0 



IS- 4 

 129. o 



13-4 



57- o 



149.0 



13.6 

 82.2 



13.6 

 56.6 



20. 6 

 121. o 



173- S 



136.6 



47- 6 

 63.0 

 36.0 

 26.6 

 26.6 

 36.6 



35-9 

 36.0 



41-5 

 53-7 

 60. ■; 



52-5 

 26. o 

 34-2 



48.7 

 37-2 

 35- o 

 28.0 

 126. o 



29. o 

 28.6 



67.8 

 78.4 



Ice-water extrac- 

 tion method. 



16. 7 

 19.8 



13-7 



13-8 

 31.0 



16. 7 



17. o 



14. o 

 24.0 



14- S 

 37-5 



8.5 

 20. 2 



43- o 



II- 5 

 21.5 



13- 

 22. 



15- 

 46. 



35- o 

 38.6 



36.0 



19. o 



20. o 

 22. o 

 12. o 



16. o 



17. o 



18.0 



16. o 

 16. 5 

 17-3 

 16.0 



14.7 

 16. o 



19-3 



21. o 



40.3 

 32.7 

 22.5 



21.6 



Remarks. 



Freshly ground. 

 Do. 

 Do. 



Do. 

 After standing. 



Freshly ground. 

 Do. 



Do. 

 After standing. 



Freshly ground. 

 After standing. 



Freshly ground. 



After standing. 



After long standing, 



moldy. 

 Freshly ground. 

 After standing. 



Freshly ground. 

 After standing. 



Freshly ground. 

 After standing, moldy. 



After standing. 



After long standing, 



moldy. 

 After standing. 



Do. 



Do. 

 Freshly ground. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Do. 

 Do. 



Do. 



After standing. 



■ Expressed in cubic centimeters of normal alkali required 

 material. 



34. 5 Freshly ground. 



78. o Do. 



77. 7 After standing. 



to neutralize the extract from 1,000 gm. of 



