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MICROSCOPICAL 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 | Rot, by} Fields | Yeasts 
Sample.| weisht, with and Bacteria. || Sample. | weight, with and Bacteria. 
in stock. | molds. | spores. | in stock.| molds. | spores. 
Per 1/60 | 2fillion | Per 1/60 | Million 
Per cent.| Per cent.| cmm. perce. || Per cent. | Per cent.| emm. per cc. 
1 Oe see 0 0 4 ll PHS lat 9.5 16 25 18 
Die eae 0 2 4 GSA bate hs 9.9 36 14 §3 
Sage he 0 0 9 SINNE2G eects otere 10.0 42 19 123 
4a Rhye 0 0 3 Bi lier sy sre eteaye 10.0 42 19 116 
iia Aer ae 0 2 4 SN ee oyehee aie 10.4 30 41 93 
Ghee Sa 0 0 3 DW OO siete trate = IY 6 68 87 
lee toe 0 0 2 Se Wea sane 12.4 54 23 34 
Sa Ose 0 0 3 PAM Pest apes a 13.8 32 35 32 
Oasis, 0 0 9 A 2 ae 15.0 57 22 197 
10R eRe 1 2 20 10) 35ee ee 18.0 20 31 29 
ih eee oe 1.8 0 20 28) Woon 19.1 66 9 223 
1 ee 2 8 27 S| Some). 20. 0 70 24 402 
Bie See 3 8 23 29 OS nee 20.0 63 22 366 
4eestes | 3.4 8 i Ba Bi doc ons 22 38 31 42 
ses Sees 4 16 35 DON osuee sta 23.6 50 34 101 
UGEe ee 5 22 38 UA Dasa se 24.3 74 12 
Wee 5e 5 4 28 Shy | AOA eee 31 42 37 49 
iS Desa a 5 22 20 Gon ia 40 64 34 £4 
TQ es 5.0 27 16 OA DUN Resa 50.9 64 36 60 
740 ee es Heo 12 12 PAS WEA asi 100. 0 98 210 396 
7a eee | 5p5 § 7 Onl GAA ee 100. 0 100 35 65 
22 is dere 0 6 CR ee cs 100.0 100 22 960 
23 eX). Ua 24 4 pay Ce Koen ee 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 limits 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 
