New YorkK AGRICULTURAL EXPERIMENT STATION. 189 
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SERIES V. SEVEN DAYS’ GROWTH; CULTURAL CHARACTERS ALIKE IN ALL; 
CYTOLYTIC ACTIVITY TESTED ON TURNIP AND RADISH. (VERMONT XLVIII 
FROM SERIES IV WAS INCLUDED IN HERE AS A CONTROL. ) 
Weight of Cytolytic Diastatic 
Organism. Reaction. Precipitate. activity. activity. 
Vermont CO Re ooec act ee ere deatente 1.3% 0.334 gr. Die 0. 
Lye as ee LE2% OR 23 Suu VR lah O73 
New york, GL Sta eee es L295 Ov4TOr i Qe 
Miller Sy Nou Deen. 0.9% 0.380 “ Ce Or 
= 0. Be Sees ie es Chee ae 0.1% OF3s4-> Le O. 
< Miller 2, NG#2 iy Stes 0.9% 022524 ets 0. 
2 OM Ret Blae ce pain 1.2% 0.400 “ bale Op 
4 ORR Gi Ge. tee ks o. ee 0.440 “ 1a OF 
Tel% ORs Bass PV: O. 
WermlOminmes GV Liles tess. 
Series VI. SEVEN DAYS’ GROWTH; CULTURAL CHARACTERS ALIKE EXCEPT 
GENEVA 10 WHICH SHOWED HEAVIER CLOUDING AND PELLICLE; ENZYMIC 
ACTIVITY TESTED ON TURNIP AND RADISH. 
Weight of Cytolytic Diastatic 
: Organism. Reaction. Precipitate. activity. activity. 
NewevorkeMiller 3.03% 2.0.1, oc... a5 0.361 gr. ate 0. 
“ Miller, 34 ils TAS 1.5% 0.240 ate On 
iy Riverhead 3 ated abe ee Oe2Z50mes Lvs 0. 
“s OPUELL Gasas oar oe) ate 123i% 0.134 ° ip O. 
s (OPA vine yee ey, ene ered 1.5% 0.264 “ Elle (Bi, 
4 Riverhead 2) it. sn: 1.8% Or237 4 pie 0. 
Weerenong gw VELL 2 6 fo) od 2% 1.5% 0.258 “ Lit. 0. 
SERIES VII. SEVEN DAYS’ GROWTH; CULTURES SIMILAR IN VIGOR AND 
GENERAL APPEARANCE; TESTED ON TURNIP. 
Weight of Cytolytic Diastatic 
Organism. Reaction. Precipitate. activity. activity. 
IS SGALOLOMOTUS esate: 6 ben ase we 4% 0.689 gr. a 0. 
Kale rot (Spieckermann)....... 2.% 0.626 “ 1m A 0. 
MGT ECOU. 1) Sete ek even) onto he ee 1.8% 0.674 “ plata Oy 
IBM OlELeRCEAG sich. ccy-.e.o bia, cn wis ck 7% Ovso0n” ie 07 
SBOE TVOLUGS fee are cle ah he 1.8% 0.435 “ Te 0. 
Potter’s bacillus...... SE 9G) Ri Daa 02.676" aiply ray 
.These results are in general accord with those of preceding 
investigators so far as published. 
Potter describes (1899, 1900) for his Pseudomonas destruc- 
tans action upon the wall like that we have observed for B 
carotovorus. He records later (1902: 398) evidence of direct 
_ penetration of the softened cellulose remnant of the wall by 
the organism. This is probably to be regarded as due to 
physical pressure rather than to solution of membrane, though 
