S8 
BL'LLETIX 51, U. 
DEPAETINIEXT OF AGEICTLTrEE. 
It is interesting to observe that B. coli were found in but 2 of 
the 45 eggs; tliat in those cases it was present in small ntunbers 
only and then with large numbers of other bacteria. In fact, the 
mold in Samples 4029 and 4032. respectively, was in the air cell and 
apparently had not penetrated the egg membrane, though undoubt- 
edly it would have done so in time. It is also of interest to note that 
the odor of Sample 4029 was putrid and that of 4032 stale: both had 
yolks stuck to the shell. 
Molds, as uidicated by the descriptions given in Table 12, may 
appear in clean and diity shell eggs. If the shell is dirty, the fii^st 
visible s-pot of mold is veiy often beneath the spot of dirt. Since the 
mold infections seem to be due almost entirely to shell penetration 
after laying, one would expect to find the egg — both yolk and white — 
adhering to the membrane. Such is usually the case if the growth 
is extensive. 
So varied are the visible results upon the egg of the growth of 
mold inside the shell that much space might be consumed describing 
individual eggs. The salient points for our purpose, however, are 
the facts that the eggs which show mold before the candle give a 
growth of mold when the egg substance is transferred to suitable 
culture media, and a study of the substance of such eggs shows that 
the mold is not confined to the area where it is visible, but is com- 
monly diffused throughout both white and yolk. A moldy egg is 
also likely to show a large number of bacteria present. 
BLACK EOTS. 
Black rots need but short comment here. They are recorded for 
comparative purposes only. Table 13 gives the bacterial findings in 
10 of them. The odor and appearance, both before the c-andle and 
after opening, would exclude their use for any 
for leather tannin2'. Thev could be used fcr fertilizer. 
food purpose or even 
5LE 13. — BlarJ: rots — individwil ccio-' 
Sample 
No. 
3&07-6 
3009-5 
Date of 
esaiptna- 
tion. 
Total mimlser of bacte- Xtiiaber of 
ria per gram on plain eas-pro- 
agar incubated at— ducingbac 
teria per 
gram in lac 
20= C. 37° C. -tosebfle. 
1910. 
Dec. 21 
Dec, 27 
300&-6.-.do. 
3010-1 Dec. 28 
3012-3 
4045 
1911. 
Jan. 14 
July 11 
180,000.000 
49,000;Cr00 
4,200,000,000 
120,000,090 
350,000,000 
140.000.090 
7,500,000 - 
),300,OCO,000 -- 
33,000,000 
790,000,000: 
340,000,000: 1,000,000-f 
I 
Description. 
Tbin. watery contents, -n-itb bad odor. 
Watery contents, with strong odor. 
Watery, oiive-green, gassy contents, with bad 
odor. 
Green contents, with strong odor. 
Brownish, gassy contents, with bad odor. 
Black londer candle; egg had a bad odor before 
being opened, and a" still worse one after- 
wards; some shrinkage; fixed air cell. 
