MICROSCOPIOAL STUDIES ON TOMATO PRODUCTS. 9 
results obtained (Table 7) are tabulated in the order of increasing 
amounts of decay or rot present in the original stock. Samples 
containing 1 per cent or less of rot show low counts on each type of 
organism, while in those containing more than that amount one or 
another of the organisms usually runs higher than is the case in 
good stock. 
TaBLE 7.—Relation between percentage of rot and microscopical count on laboratory 
samples. 
] 
Rot, by | Fields Yeasts 1] Rot, by} Fields | Yeasts : 
Sample.}| weight, with and Bacteria. || Sample. | weight, with and Bacteria. 
: in stock.} molds. | spores. } in stock.} molds. | spores. 
| 
Per 1/60 | Million | Per 1/60 | Million 
Per cent.| Percent.| cma. DEDcl | Per cent.| Per cent.| emm. per cc. 
eee ac 0 0 4 B) ||| Bosh esac 9.5 16 25 18 
ake 228) 0 2 4 At 2b ees sate 99 36 14 §3 
Bacoseos 0 - 0 9 3 | 2p ee eee 10.0 42 19 123 
Ape See 2 0 0 3 | 2A Wel Sele ses 10.0 42 | 19 116 
Hesse ss 0 2 4 BON As meee 10.4 30 41 93 
(ae ae 0 0 3 Dl DOM sey 11.7 6 | 68 87 
Ue See Ae 0 0 2 Hi) Oras oa22 12.4 54 23 34 
See ezea= 0 0 3 PEN Late eo 13.8 32 35 32 
Qensesee 0 0 9 14>) 32e ey 15.0 57 22 197 
OEMS gs 1 2 20 NO S335 Se eee 18.0 20 31 29 
UL See ae 1.8 0 20 28 SEs coon 19.1 66. 9 223 
1D 2 8 27 18)|| Sipe ee [seai20*0. 70 24 402 
1G} Sones 3 8 23 29) | BOee ese 20.0 63 22 366 
D4ee 555% 3.4 8 1 PA NWeW ise Seise 22 38 31 42 
is Be a a 4 16 35 55 || 38...-.--| 23.6 50 34 101 
168: 25). 5 22 38 69 1 SOse ees 24.3 74 12 
UES oe 5 4 28 13) | \40e eae 31 42 37 49 
WSes 2 oa 2 5 22 20 Gol) ieee 40 64 34 54 
1 SE 5.0 27 16 CO Wades 60.9 64 36 60 
208 5 -h 5.2 12 12 28 | Bie ah | 100.0 98 210 396 
2b tk. 5.5 60 7 ON] | Sac a/ 100. 0 100 35 65 
PLIES ae 7.3 0 6 CAIRC SSS aee 100.0 100 22 960 
(3 ESREEIe 7.5 24 4 15 | AGE ees este 100.0 98 103 860 
No high mold count occurs in samples low in amount of rot (Table 
7). In some instances, however, low counts of mold were obtained 
in samples containing a substantial amount of rot. In such cases 
the decay was due principally to yeasts or bacteria, the count for 
one of which is usually high (Samples 18, 22, and 29). If, however, 
mold is the principal cause of decay, the counts on yeasts and bac- 
teria are low (Samples 21 and 39). 
In Figure 1 the mold counts have been plotted as ordinates and 
the percentage of rot in the stock as abscissas. Having plotted on 
the chart the mold counts in Table 7, it is possible by connecting 
the outlying points to define the approximate limits of what may 
be called the ‘‘Zone of Possible Mold Counts.’”’ From the chart it is 
seen that within this zone any count within certain limits may occur, 
In the writer's experience no counts on laboratory samples beyond 
these mits have been observed. For instance, no laboratory sample 
with less than 5.5 per cent of rot gave a mold count of more than 50. 
In making the chart the zone beyond 24.3 per cent of rot is repre- 
sented on the basis of Samples 44 and 45, though the chart as drawn 
does not extend beyond the point of 30 per cent rot. 
4211°—Bull. 581—17—_2 
