BULLETIN 563, L T . S. DEPARTMENT OF 1 'AGRICULTURE. 



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



5 



A (fat, 17 per cent, gelatin — ). . . 



1 



Vanila 





44 





440,000 







2 







45 



48 



465,000 







3 







46 



49 



475,000 







4 







36 





360,000 







5 







49 





490,000 







6 







35 



44 



395,000 







7 







47 



43 



450,000 







S 







49 



41 



450,000 







9 







26 



41 



335,000 



B 



1 





x 



44 



53 



485,000 







2 





TOOOO 



46 



38 



420,000 







3 







44 





440,000 







4 







50 





500,000 







5 







48 





480,000 







6 







42 



44 



430,000 







7 







41 



- 46 



435,000 







8 







48 





480,000 







9 







41 





410,000 



c -..' 



1 





T06O&0S 



142 





142,000,000 







2 





123 





123,000,000 







3 







137 



107 



122,000,000 







4 







156 



152 



154,000,000 







5 







130 



123 



126, 500, 000 







6 







138 



135 



136,500,000 







7 







142 



130 



136,000,000 







8 







143 



130 



136,500,000 







9 







145 



176 



165,000,000 



6 



A (iat, 9.2:per cent, gelathn ) . . . 



1 



Vanilla 





144 



178 



16,100,000 







2 







128 



136 



13,200,000 







3 







179 



-161 



17,000,000 







4 







200 





20, 000, 000 





j ' 



I 5 







235 



190 



21,250,000 





! i 



6 







152 





15,200,000 





: i 



7 







130 



133 



13,150,000 







8 







270 





27,000,000 







9 







222 





22, 2O0, 000 





B 1 





! 



102 





102, 000, 000 







2 







86 



108 



97,000,000 







3 







109 



111 



110,000,000 







4 







107 



107 



107,000,000 







5 







111 



105 



108,000,000 







6 







117 



115 



115,000,000 







7 







117 



115 



116,000,000 







8 







90 



108 



99,000,000 







9 







103 



98 



100,500,000 





1 



Chocolate. . . 



1 



45 



43 



44,000,000 







2 







41 



39 



40,000,000 







3 

 4 

 5 







37 



48 



42,500,000 



39 



43 



41,000,000 







6 







41 



44 



41,000,000 







7 







43 



42 



42,500,000 







8 







37 





37,000,000 







9 







52 



41 



46,500,000 



D 



1 





1 



121 



102 



1,115,000 







2 





l ° 000 



114 



98 



1,060,000 







3 







120 



125 



1,225,000 







4 







126 



106 



1,160,000 







5 







105 



113 



1,090,000 







6 







87 



124 



1,055,000 







7 







134 



149 



1,415,000 







8 







122 



125 



1,235,000 







9 







137 



137 



1,370,000 



7 



A 



1 

 2 



Chocolate . . . 



TcT&ire 



170 

 161 



176 



1,730,000 

 1,610,000 









3 







161 



183 



1,720,000 







4 







179 



165 



1,720,000 







5 







162 



192 



1,770,000 







6 







174 





1,740,000 







7 







131 





1,310,000 







S 







184 



143 



1,635,000 







9 







157 





1,570,000 



