KINDS 01 KM!!.! Y. 17 



varictie-. irivini: a da ificat ion ha-ed on the varying structure. He 

 ha- -hown that the amount of hu-k- or pahe i- rreater in C.-ro\v 

 harlev- and that they act ftfl a protection airain-t mold. l>arley- have 

 al-o been -tudied tVoin the phv-ical and l>otanical view points by 

 IJoyd. 1 Ilroili.'- Attei-herir and M'edin.' and in thi- count ry by Nilson. d 

 The la-t mentioned ha- -hown that tlie coinmon Oderbmoker or 

 Manchiirian barley- aiv made up of t \\ < di-tinct type-. one with 

 -hort and the other with lon^ haired ha-al lrMli'-. tlie former pre- 

 dominatini: to the extent of at tout ^< percent l'.e-ile- tlii- dillei-ener, 

 it ha- leen noted that the lir-t pan- of \rin- on tlie husk on the dorsal 

 >idr of rtain harley- aiv dmtated like a -aw. while in ntlier grains 

 the vein- ai'r -inooth. Hl60B and other >imilar IDOrpbologica] dif- 

 I'.-i-eiire- ai'- u-<'d in d i-t i M:II i-h i MIT the varietir- of harley. hut Broili 

 hown that thei'e a i~e many otln-r varietal ditl'erenee-. for example, 

 tlie hairint of the lodieule-, all of which inii-t he eoii-idered in de- 

 tei-ininini: ^ hether a ra-- i- pi; 



An important -tmly has been made by Wilfarth. Ki'.mer. and 

 \\'immer ..n the amount d' plant f ..... 1 a undated l>y barley during 

 the periotl of it^ de\el.pment in the field. 'I'he-e author^ analy/ed 

 the L r r\\iiiL r barley at four dim-rent -taire- of L r i<>wth for the u>ual 

 plant ron-tiluent- and found that at the heading pei'iod moi'e pota-h. 

 Mda. and nitrc.^eii ace pr.e-ent in the plant- p- than at any 



Mib-e|iient period. The explanation -riven i> that the POOtfl of the 

 viliL' plant eZCretC the-e phint-foo.l eleinelil-. More 1,-,-elit ill 



reedgationfl ly Le (Mere and Hi -houed that the as.siiniptinii 



cf nidi an exeretion thi-oiiL r h the root- of L r rowini: barley or other 

 plant> i> erroneooa Thest* authoi-- f(und that the irreat loefl of plant- 

 i element- noted in barley durinir the ^rrowin^ period i- raii-ed 

 by rain and other atm<'-pherie aifin 



KINDS OF BARLEY. 



Barley has been prowii for thou-an.U of years. Arrordinp: to 

 l>oetor Lauth' ; it was irrown in (Miina >onie two thousand year- a^o. 

 and in Kirypt e\-en a- far back a.- -ix thou-and year-, a- is shown by 

 the pictui-e- of -heave- and ear- of //"///, ///// h< .,-tixtn -hum on ancient 

 coin>. It thrives in widely different climate-, from Algeria to Xor- 



A Mi.T. P.rrNN. K.-v.. IIMHI. 20: 79. 



* Dissert. Jena. I'.MH; : ;,ls<,.F. Lnn.hv.. I'.MIS. :,; : li'l. 

 \V.H-iM'iisehr. linni.. I'.M.T. 1*4: 1TL'. 



d Amer. Brew. Rev.. VXU. IS: n:i: I'.MH;. -JO: IT:,. 



1,-m.hv. \-ri-s.-St:it.. I'.H.r,. M: 1. 



f T. S. Dept. AUT.. Y.-:irl. M ,k. 1908. 

 Hre\\. liev.. I'.MH;. -_>0: 2K, 



