632 KUNKEL: INFLUENCE OF STARCH, PEPTONE, AND SUGARS ON 
TABLE III 
THE TOXICITY OF BARIUM NITRATE IN PEPTONE, GLUCOSE, FRUCTOSE, AND 
GALACTOSE MEDIA 
edium Growth after 11 days. 
.167 molar solution of barium nitrate + 5% peptone......... Z 
.133 ‘“ “ “ 6s re + * ae so fare) ata Oo 
067 “ «6 i ee + ‘* lS eae eas ey cope 
033 ry 6 “ ‘ ies + * Peds wh nye eas ee cae + 
17“ ‘ “ ‘ a“ + * ee Rain Oe + 
007 “ ‘6 ‘6 #6 L — Re er pact Aenea + 
167“ “ Siete eT eae RROOSE: SMEs ss = 
sag te “ as hs a OA es ene arias ate = 
002 ie Wee 2 Se aa pte ira Corea ras ~ 
067 >“ eB Gaye as eine at Shh oe * 
033 oe bi bad ae ae + 5 Seay tres RS Boe asi 
o17 “ ‘“e “6 +s be + * = Fare eye TS = 
007 aE SE ee Lee See + 
005 ae eae ls, Hein ASRS a 
004 “ “ 66 6 iy + * sista A OG tangs cid 
167. * 4 ie ee = fee trmetose sas, 4s s = 
133°“ “ “ “ ys + * spies hes Zo “Se 
eae Bane ic ane, a ets Maa roe - 
day ee ee oe ane Tee - 
033." re So He ny od eg emg = 
O17 ‘ ‘6 se ‘6 FE + 1s Stee ede ails ake ae 
007“ “ ik ee Reet tegen ee Ef 
005 “ ‘ ‘ e + * Prog oe Wap + 
004“ a be eae Oa ISS ahenuope s e,: 
167 ‘“s “ ‘s “ id + * Feat Mapa Gear et oO 
133. * ee ee ae” Fe eS ees 0 
a8 és Sane ty tee a: er ia eta tel fa) 
067 “ ‘6 +e + * RG Tere rarer Fk = 
033. a oe a clog. Kas eo = 
O17 ‘ 46 s as +f + * RIG epee SDT Ae + 
007“ eae ig PTE My ae eRe te iL 
coos“ ‘ “ a“ oe + * il nine ge tee ee + 
.004 =“ o i Hy Sk eyo te RePeae ae SRE + 
distilled water + ‘‘ peptone......... ees 
. ee 50 ODMR Saline + 
we Slee oo EEC SOEE bor aan cise i 
" es palaetoee cis gs es +: 
media inhibits the germination of the spores; in a concentration of 
0.017 molar, the spores germinate and produce microscopic 
mycelia. Aluminum nitrate in starch media is more than ten 
times as toxic as in peptone media. Its toxicity in glucose media 
is approximately the same as in starch media. It is much less 
