THE DETERMINATION OP BACTERIA IN ICE CREAM. 5 



Table I. — Bacteria per cubic centimeter in 198 samples from twenty-two 1-gallcn lots of 

 commercial ice cream obtained from different manufacturers — Continued. 



Plant 

 No. 



Lot. 



Sam- 

 ple 

 No. 



Flavor. 



Dilution. 



Number of 



colonies on 



duplicate 



plates. 



Average 



count 



per c. c. 



2 



C (fat 9.6 per cent, gelatin +) - - - 



1 



Vanilla 



TSirhreS 



60 



64 



62,000,000 







2 







63 



65 



64,000,000 







3 







73 



62 



67,500,000 







4 







70 



68 



69,000,000 







5 







64 



70 



67,000,000 







6 







73 



77 



75,000,000 







7 







63 



57 



60,000,000 







8 







63 



72 



67,500,000 







9 







57 



72 



64,500,000 



3 



A (fat 9.6 per cent, gelatin +) . . . 



1 



Vanilla 



-tires 



286 



290 



288,000 







2 







360 



254 



307,000 







3 







270 



289 



279,500 







4 







250 



270 



260,000 







5 







314 



250 



282,000 







6 







251 



252 



251,500 







7 







268 



250 



259,000 







8 







311 



287 



299,000 







9 







261 



306 



283,500 



B 



1 



Peach. 



Are 



219 



186 



202,500 







2 







214 





214,000 







3 







222 



190 



206,000 







4 







192 





192,000 







5 







212 



194 



203,000 







6 







197 



200 



198,500 







7 







212 



208 



210,000 







8 







231 



205 



218,000 







9 







218 



224 



221,000 



c ,. 



1 



Chocolate 



xsfore 



107 



104 



1 055 000 







2 





118 



99 



1^085,' 000 







3 







96 



99 



975,000 







4 







106 



96 



1,010,000 







5 







108 



119 



1,135,000 







6 







123 



124 



1,235,000 







7 







102 



97 



995,000 







8 







124 



123 



1,235,000 







9 







103 



121 



1,120,000 



4 



A (fat, 22.5 percent, gelatin—)... 



1 





TS'cVss 



341 



334, 



33,750,000 







2 







274 



266 



27,000,000 







3 







284 





28,400,000 







4 







294 



302 



29,800,000 







5 







284 



270 



27,700,000 







6 







301 



303 



30,200,000 







7 



' 





325 



331 



32,800,000 







8 







321 



329 



32,500,000 







9 







314 





31,400,000 



B 



1 



Peach 



TOoOOO 



321 



310 



31 500 000 







2 





270 



305 



28'750'000 







3 







386 



372 



37,900,000 







4 







278 



305 



29,150,000 







5 







367 



356 



36,150,000 







6 







354 



357 



35,550,000 







7 







431 



466 



44,850,000 







8 







470 





47,000,000 







9 







434 





43,400,000 



C 



1 



Chocolate 



T5W5XT 



310 



298 



30 400 000 







2 





286 





28'600'000 







3 

 4 

 5 







330 





33,000,000 



293 



288 



29,050,000 







6 







284 



288 



28,600,000 







7 







328 



292 



31,000,000 







8 







286 



278 



28,200,000 







9 







275 



285 



28,000,000 



