8 BULLETIN 369, U. S. DEPARTMENT OF AGEICULTUEE. 



Table III. — Results of the bacteriological examination of water coUectedfrom spring No. 3. 



Description of sample. 



"Clean "bottle rinsed with 100 cc ster- 

 ile water 2, 700 



"Dirty" bottle rinsed with 100 cc ster- 

 ile water 37, 000 



Water used for washing and rinsing 



bottles 1,000 



Do 1,700 



Water from bottling spring 14 



Do \ 8 



Water from reeei\ing tank from spring. ; 330 



Do i 110 



Water from feeding tank for bottling. . , 170 

 6 bottles collected before inspection; 



average results : 10, 100 



Colonies of organisms per cc de- Smallest quantity in which 

 veloptng after — were found — 



2 days' in- 

 cubation 

 on nutrient 

 agar at 

 37° C. 



4 days' incubation on 

 nutrient gelatin at 

 20° C. 



Total 

 count. 



3,700 



40,000 



2,100 



1,500 



4 



3 



290 



170 



3,100 



33,500 



Liquefl- 



ers. 



110 



3,300 



30 

 40 

 

 

 190 

 60 

 



313 



B. coU. 



At time 

 of collec- 

 tion. 



.01 



.1 

 .1 



(I) 

 (') 

 10.0 

 10.0 

 1.0 



2.01 



2 days 

 after col- 

 lection. 



.01 



.1 

 .1 



(') 



(1) 



10.0 



10.0 

 5.0 



Molds. 



1 No B. coli were present in 10 cc quantities. 



2 This determination was made at the time the sample was received at the laboratory. 



