98 
Agar alone. 
Soil and agar (Purdue soil). 
Soil extract (unheated) and agar. 
Soi] extract (autoclaved) and agar. 
(15 gms. agar in all media.) 
Colonies developing well on each media were transferred to slants of other 
media. 
and 15 days. Incubation at 22° C. 
From 4 Colonies on L and B agar to 
Tables give results of growth on these agar slants at end of 5, 11, 
Shown in- 
5 Days. 11 Days. 15 Days. Plate 
(2 gr. 2 er: 3 gr. I 
ING ASD AA Danance ee Wee vs sok 2 ; 
(2 — 2— {= 
(3 in 3 gr. 3 gr. 
A AM aLOMPs eye haere ns ae ee ee ‘ 
{1 — 1— 1 — 
2 gr 3 gr. 3 gr. 
Soil ext. (unheated).......... 
2 1— 1 — 
From 4 Colonies on Na, asp. agar to 
5 Days. 11 Days. 15 Days Plate. 
RAM MBNA AL a aa cat ete kes 4 g. 4g. 4g. IL 
(3 g. 3 2 3 g. 
AP ATIALONEGS cy anteal M iches a { 
(1 — 1— 1 — 
ek. (3 g. 4 g. 1g. 
Soil ext. (unheated).......... ‘ 
{1 — 
From 8 Colonies on Plain Agar to 
Days 11 Days. 15 Days 
(2 g. 2g. 2 g. 
LORE VG lel REG ate Re get ee, eee oft gt Be ea : 
(1 — i— 1— 
{2 g 2g: PAs ah 
INidies USD rele ave eater gsi score, ef ects 
{1 — | — 1— 
(2 Is 21 2) Bs 
Soil ext. (unheated). ... ‘ 
i pe 1 
