of wuuja-jQjornial F iM '.T; < -i, i
lO-percent sulphur/- if * \*> -*«
gas, as slicMui. AI"-M*» M
from the utration f! i-v • */ -
end of
methyl
the*
soil :

j A

I
S /

FI . : i -\> i. ,. lM ,

NitribBLcataan.—A prottuetivt H*H I-T t -it1

in whicfc the plant can fix ;^l! a-i«.I *:o:i ^
"by processes of solution ami diiLixvir i\
teeraio.g with living 01 gani*-!!^ whvb 5 '
diffiexilti to duplicate In the laboratory. B>
food which otherwise might not l>c n-c %i •* i»
plairfc. Two important organism* have '
called **nitrosococcus/* caiin^ cnldati^n o:
and "tlic? other, **nitrohaet«r/* eaiiM*-*»jM
nitrates, according to the following riatt.^i

^ 3C\ —

; i :a V *^ t T
• I i »\i * »• '

"' i * ^ t* tl -H

Mestsmiremeat of Jlitrificttioa —I rrparc 4^^ 4f if UP arpr-x.**
fifth-noirmal solution of ammonium «alhhat* r. n &\)-r vi « . *t^
and adc3 0.3 gin of dipoto&<r 1*1 pl^^pitHti Oo « «i i t ' i *' *T
and 2-G gm of afresh wimple i»^s* ftrt'* ft^il. TLt* j ir^^e f d ! i
phospliafcte is to food for tl1** if la^uru. T ". -' **
bacteria* in the soil will con\crt the an nnc u»a Ttr »JB:^V. t< n trit< r.*!r -p
the calcium to n^itniiizt the rtn* ^ .1 * ^*rted