DisrrssiuN Of KK.sn.Ts. 41 



This may be due to the fact that the >maller grains contain rela- 

 lively mop- protein than the larger one>. and of course the small 

 <rrain> contain relatively more hull-. Heaven" showed that small 

 herrie- L r a\e l8G extract, hecaii-e they had a relatively larger amount 

 of linl Is. 



< OMPABATH R COMPOSITION 07 LABGQ kND SHALL GRAINS, 



One expect^ to iind a rather dost relation between the -i/.e of the 

 irrain and the amount of Man-h pre-ent. The difference, however. 

 i> really \erv -liirht. e-pecially when the extreme CASK are compared, 

 l-'or example, -Jii -ampler the weight of which per l.nno o T:im > W a- 

 over mi- ha\e :>s.r, percent of -larch, while :1 samples under 



_'7 irram- per l.ooo irrain- coninin :.s.s prr cent of March. Johann 

 -en'- n-iili-. -ho\\inr that the \t\*r Drains contain relatively le-s 

 nitrogen than the -mall irrain- of ihe -ame variety, i- aUo corrol>o- 



I'aletl. 



The pererniaL'e of mil'ivo and l)i'an ill -mall and lariiv grains 

 varie> little, hut the re-ults -<em to ^how that -mall grains conlain 

 a |o\\rr poo d* cndo-prrm than do the lartrei- one-. T \\enty 



-ani|lr- \\ith an average wri^ht \ 80J iri'am- per 1 .nun irrains con- 

 tain 7 _'." |"r crni nf cndo-prrin. wliei'ea- ill -amplr- nf -mallei- grains 

 (tvermge \\-|.rhi p.-i- I.IMMI ^raii. '.main 71 JH-I- cent. 



There i- al-o a relation U-i \\eni I In- -i/c of the rrain and ihe 

 amount of ImlU. the lariri-i- irrain> cniitaininir -omewhal le-> hulls. 

 Tin- ha- al-o UTH found lo | N - irue l.y \\'aller-lcin and leaven/ 



Lai'L r e iri'ain- cuntain more -\iracl. -tai'ch. and endo-|)ei-m than do 

 the -mall one-. In -jn Cample- of f.-rnw harlry. with a l.(M)()-rrain 

 \\e'iL r ht al.ox -ram-, the ,L r ' <d' hran i- H.N: hull-. 



1 _'.-_': emliryo. _'..": endo-jienn. 7SL5; e\ti-aei. 71.7: March, r.s.ii: an<l 

 the weight | K . r huM'iel i- l'..:. pound-: \\hile .".1 -amplc> of -mallei' 

 Li'i-am^ of th- -anic \ ariely -that i-. tho-c wci^him: h'-- than '27 grains 

 pei- 1,000 grains contain ahout !!.', per c.-nt of hran, 11} per 

 cent of hull>. -2.^:\ pci- cent <d' emhrvo. 71 per cent of endosperm, 

 7<>.7 per cent of extract. :V.> per .-em uf March, ami have a bushel 

 \\eiirht of 4<'>.t; pouiuls. The larger iri'ain^ contain also less fiber, 

 pento-an-, and ash, but have a higher coetlicient of mealiness. There 

 i* no appreciable ditlerence in the fat, sulphur, or lecithin content 

 in larire and -mall irrain>. The weiirht per 1.000 irrains varied from 

 11>.!> tn :;:;.: i^ram-. The weight per bushel varied from 42.5 to f>l.."> 

 pound-. The liirht irrain- are le-s plump, contain more nitrogen, and 

 product- le-- extract. On the other hand, extra heavy grains are 



.1. 1V<1. hist. r,r.-Nv.. I'.MCJ. S: 542, 

 mpt. reml. travaiix ( 'arlsl.er^. IV.HJ. 4: IL'L'. 



'iiiiminicatioMs from Lal)rat>ry and Scientitic Station for I'.rewin^, S.-.-. 

 Ann. Il.|i.. T.HM. 



rit 



