ACCURACY IN COMMERCIAL GRADING OF OPENED EGGS. 5 
bored bacteria. Of the 2,052 eggs included in the 29 samples, 13.5 
per cent, as computed from Table II, were found to contain more 
than 100 organisms per cc. The remaining 86.5 per cent contained 
less than 100 organisms per cc, that is, they were practically sterile. 
Only 3.3 per cent contained over 500,000 organisms per cc. The 
percentage of eggs containing B. coli (2.8 per cent) was considerably 
less than the total percentage of the eggs containing bacteria. 
A very large percentage of the eggs comprising sample No. 41192 
had- both dirty and cracked shells. These eggs were laid in July 
when the weather was very hot. It is highly probable that bacterial 
penetration and development took place between the time of first 
assortment in the producing section and final receipt in the con- 
suming center, as an interval of 10 days occurred between the date 
of shipping and that of grading in the commission house, during 
a portion of which period the eggs were without refrigeration. Had 
these eggs been utilized promptly in the first concentrating center, 
there is little doubt that only a few of them would have been found 
to contain bacteria. The results obtained in the case of these eggs 
show the importance of having eggs with defective shells opened 
as near the source of production as possible. 
Table II.— Variation in bacterial content of samples of individual eggs candled as good. 
Date of 
exami- 
nation. 
Num- 
ber 
of 
eggs. 
Number of bacteria per cc. 
Sam- 
ple 
No 
to 100. 
101 to 1,000. 
1,001 to 
10,000. 
10,001 to 
50,000. 
50,001 to 
100,000. 
100,001 to 
500,000. 
Over 
500,000. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
No. 
of 
eggs. 
P.ct. 
41142 
1913. 
May 23 
May 27 
May 29 
June 3 
June 10 
June 12 
June 17 
June 19 
June 20 
June 24 
June 26 
June 27 
July 10 
July 16 
July 21 
July 22 
July 23 
July 25 
July 29 
Aug. 18 
Sept. 10 
Sept. 11 
Sept. 19 
Sept. 25 
Sept. 26 
Oct. 3 
Oct. 15 
Oct. 17 
Oct. 27 
72 
72 
72 
70 
71 
70 
72 
70 
72 
69 
72 
71 
70 
70 
70 
71 
72 
66 
70 
70 
71 
72 
72 
71 
72 
71 
72 
70 
71 
72 
69 
70 
67 
67 
71 
54 
69 
67 
71 
67 
61 
66 
57 
64 
67 
66 
98.6 
100.0 
95.8 
100.0 
94.4 
95.7 
98.6 
77.1 
95.9 
97.1 
98.6 
94.4 
87.1 
95.7 
81.4 
91.4 
94.4 
91.7 
1 
1.4 
41143 
-- 
41144 
2 
2.8 
1 
1.4 
41145 
41146 
1 
2 
1.4 
2.9 
1 
1.4 
2 
1 
1 
6 
1 
1 
1 
4 
2 
2 
5 
?, 8 
41147 
1.4 
41148 
1 
1.4 
41149 
5 
7.1 
2 
2.9 
3 
4.3 
8.6 
41161 
1 
1.4 
1 
1.4 
1.4 
41164 
1 
1.5 
1.5 
41167 
1.4 
41169 
5.6 
41175 
3 
1 
7 
3 
2 
1 
4 
3 
1 
2 
1 
1 
2 
7 
4 
13 
11 
4.3 
1.4 
10.0 
4.3 
2.8 
1.4 
6.1 
4.3 
1.4 
2.8 
1.4 
1.4 
2.8 
9.7 
5.6 
18.1 
15.7 
1 
1.4 
3 
4.3 
? 9' 
41178 
.::::. 
?, 9 
41180 
1 
1 
1.4 
1.4 
7.1 
41182 
1 
1 
1.4 
1.4 
1 
1.4 
41185 
1 
3 
7 
2 
5 
4 
6 
3 
3 
1.4 
41189 
2 
21 
2.8 
31.8 
4 ?, 
41192 
11 
2 
1 
16.6 
2.8 
1.4 
14 
21.2 
9 
13.6 
10.6 
41316 
63 
62 
64 
63 
64 
66 
63 
63 
56 
14 
90.0 
88.6 
90.1 
87.5 
88.9 
93.0 
87.5 
88.7 
77.8 
20.0. 
2 9 
41435 
1 
1.4 
7 1 
41438 
1 
1.4 
5.6 
41505 
1 
2 
1.4 
2.8 
1 
1 
1.4 
1.4 
8.3 
41506 
1 
1.4 
4 2 
41509 
4.2 
41551 
2 
2.8 

41594 
1 
1.4 
3 
4.2 
41598 
1 
19 
1.4 
27.1 
1 
11 
1.4 
15.7 
4 
1.4 
5.7 
41645 
6 
8.5 
5 
7.1 
Total . . 
2,052 
1,774 
86.5 
76 
3.7 
45 
2.2 
36 
1.7 
20 
1.0 
32 
1.5 
69 
3 4 
■ 
