CONTENTS 
PAGE 
UM B areaeaee a Me oa ire. aw Sih v2 « VES HEHE pee n o Da iil 
CHAPTER I 
THE STUDY OF PLANTS 
TE ay a a eee a oe 1 
mee Bee MeMINMINON OF DOUAMY. |. 9. -)-. ic). Pages ss). 5 ai bane paemem 1 
aeamr Gepenuence pon Plants. . .': 2. SS... nd ee ee ke 1 
4, Human needs and the needs of plants.................... 2 
en RE IRAN IEE SIAIIUM Scot rc. s ae Sak s.ss ala ee tee 2 
Sone LINGO MONIES oi 5c 28 8: sen ee = be b eynee ars eek 3 
PePeatrinitital HOMMGCMEIALUTG, .. 2... 2 a baclen s+ dace: rp canuiwe 4 
REET R re Seri re ke cat a... Ss, vce anaedlahe Lok tec ny kg eee 4 
SE tt AP a ae rae nt SS x 4 ees ede gia eyed OU 5 
INU PR EESIIES 2 ER ns... . pe ph Pa ctaavort ue Wee Semen . is 
CREE INT Oa oe rs... eee dhe ee oe 7 
2) eiant fanvilies and higher groups. . .. >... 6.0.4 sss024<benk 7 
oa eee MeparimMenis Ol HOLANY. =... . . 62 odds ieee 8 
CHAPTER II 
CEREALS 
OE OUHIp aICe te... se eg ae hae & ee 11 
Beniirarteriatics OF Cereals... 2. 22 6 cs be eee wpa wih ne 11 
16. Importance of grains in ancient times..................... 17 
Bearer tienen eyi PPT. oo. es pie 5 oe diel os orynes aes a 20 
SESS PLES ecto ts kG | Sek ae hee Ns oper heheh yo 25 
PRE irate Fier re). i OD ie ey ce om ieee eon eee 25 
ERED Se UGE a2 Neate nt a ee aa ae See 25 
RON ERC ees ri A Ge ee SA ee 25 
a Ee ain ei BY, ca te 8 Le. oe 25 
Es M5 SERS 0 ieee ee a te ee an a wna Mili net Le. 28 
reer Ieee ese daw Ste en be ee 29 
Bees Bite rANIG A CENEAIS!,. oS of otk: eels so a oe oe ee 30 
ere Ise EI Sd 5 pp rors Weta eta ae ss << een ae 30 
DS SEO Sa as a Mirae coon RY SA peat? 30 
a IRE Boo oe eee Neen toa ght, Dnata eg is eRe 31 
er ePIC EMERY Foes Pate OAS ee Ce oe coe. < La eee 31 
(1 TENTS SENT i GI ale ia ARPS art Bo eae Un ele ARRON Bee OO Sy ak ee joe 
URS Rita) Ot 2) 2 ee een Slice ai 2 a «> Sog'y 3 8 eR 34 
