<>F RESULTS. 43 



-ample-. Itichardsnn -into that thr average of 10 -ample- \\a- i'.s7 

 per cent. cnn-iderahly higher than that found in any of the present 



Bamplea 



Knniir .Lowed that the fat content of barley varied from !.:'>: 

 percent, obtained in barley- LTOWII in \Yiirt tembcrr. to J. ( .7, the latter 

 repre-rnt ini: the average of !' Ru ian-irrown harleys. There is no 

 appreciable difference in fat content between high and low protein 

 barley-. Tlii- corroborate- Neumann'- re-ult- on -J-row barley. 



Tin- -uirar iv-ult- oltaine(l in this investigation, though interesting, 

 a IT iin-ati-fa'tory. o\\ mo- to tin- fact that it was impossible to de- 

 termine the sugar in the barley- until the -ample- \\ ere considerably 

 i\cr a year old. The barlc-y- W-IT hai-v-t-d in the fall id' !'.<) |. and 

 si-lit to the liun-aii of ClnMiii-try in the ^iiinnier of I'.'n:.. ^MH after 

 which inn-t of the ot ln-r detenninat inn- \\.MV made. In the fall and 

 winter nf p. MI:, the -mrar detenninat inns were begun. The results 

 ..l.iained \\ere imnnal ; that is, the invert surar enntenl \aried iVom 0.8 

 |ei- cent to L'.<I:; p,-r cent, while the can.- -iiL r ar \aried from 1 .u-j per 

 crtil to 5.09 per cent. In rYhruary. r.<);, while these i'esidt> were leinir 

 obtained, \\nrk had to IN- -ii-pended tiMiipnrarily and \va- not 1'e-inned 

 until the following May. during which interim it \\a- found that all 

 of the invert -iiL'ai- and most of the cane -uirar had di-a|j>eare<l. 

 'I'hi- irafl tru.- nf l.nth the rround and the unrrmind harh-y. The 

 caii-e nf thi> phenomenon remain^ unknowiu though it may he clo-ely 

 connecte<l with the lo nf dia-ta^r which take- place when seed has 

 lo-t it- L r ei-minatin^ p\\ 



The percentage of a-h in the-e ^} -ample- nf harley a\ei'airr- 2.98 

 ami \ai-ie- tVnm _'..'. -it. a rather larire \ariation. the Ten- 



Deaaee, < )hio, I llinoi>. and New Ynrk harley > containinir le than t ho>e 

 from the other State-. ( >n the other hand. Montana and Kan>a* har- 

 ley-. are very hiirh in ash. N> relation e\i-t- Let ween the ash content 

 and the |M'iveiita_i:- of pmtein. Delhriick ' found that hi;li and low 

 protein hai'l- pi-act ically the >ame perct'iita^e of ash, fat, and 



hulls. The average a-h content found in 7'. samples of American 

 harley. a- quoted hy Koni^r. is :^.10 per cent, a figure quite close to 

 that ohtained on the -ample- reported here. 



The percentage of phosphoric acid varie- from O.s to l.-J."i, increa-- 

 iniT and decrea-in<r as a ride with the amount of ash. in which the per- 

 centage of phosphoric acid varies from 27.4 to liM. the largest amount 

 heinir found in Ohio. When extreme cases are taken into considera- 

 tion there -eiii- to be also a rather close relation between the amounts 

 of phosphoric acid, protein, and starch present : the higher the per- 



! . S Dept A-r.. Division of Chemistry, liul. !. 

 * UntenmchfUlg UmdwlrtSChftftlldl uinl L'ewerldieh wichtijier Stoffe. ]}. 48(J. 



.F. lust. Itn-\v.. UNIT. l:J: ST. 

 ''AltM,. throuirli J. hist. Ilivw.. I'.MIS. 14: -lor,. 



'' Trans. Ainer. P.rew. Inst.. I'.MC,. : l;. 



