210 Profs. Percy Frankland and Marshall Ward. 



The flasks were exposed from 9.4.92 

 onwards. 



•autqsuns ( smoq 99 



84 hours' sunshine. 



•autqs 

 -uns { sjnoq XQI 



•auiqs 

 -uns t s.moq 93 



Much importance cannot be at- 

 tributed to the exact number ' 

 in this case, as only 3 anthrax 

 colonies were found on the 

 plate, so that there is much in- 

 accuracy possible in multiply- 

 ing up to 1 C.C. j 



3 c.c. water + 1 c.c. broth, heated 

 for 2 min. at 70° C. 



•These were counted prematurely^) 

 for fear of liquefaction. 



Only 1 and 2 anthrax colonies | 

 respectively were found on the 

 plate, so that there is much 

 chance of error in multiplying 

 up to 1 c.c. " J 



Number of colonies in 1 c.c. of 

 the water. 



Anthrax. 



0000 



to 



0000 



0000 



00 00 

 



rH CM 



Total. 



Too much liquefied 

 700 



Too much liquefied 

 10,000 



Too much liquefied 



33,300 

 9,750 



Not counted owing 

 to gelatine liquefying 



Too much liquefied 

 33,550 

 500 



33 



3,970 

 270 



9,500 

 2,200 



Yolume of 



water 

 employed 

 for plate 





„l« 1'" lo 



C H «P»|<flK|lO 



M |« |s> 



In lie I" 5 

 l H F" |m 



1 



rH Hjip r "iS cc }^ 



Number 

 of days 

 plates 

 were 



J.11U Lt LfCwL'CVA. 



IO X 00 



«s iro co eo 



M M rH 1— 1 



XI QONQON 



rH rH rH 



i 



150 oo 00 



Number 

 of 



1— 1 (M >0 CC 

 IO 10 lO lO 

 iH iH rH tH 



ONOH l 

 OS Oi O O 1 

 HH(MN 



00 H C\] CD X> 



1^ nooooco on 1 



<M CM <N <N <M <N 



CO ^ t» ao 



Particular 

 flask 

 used. 



M MM M 



HH HH H/l H^ 



! 



M t— 1 M M 



HH HH H/< tJ* 



M M M M M M j 



MM MM 



rjl hh HH H3 



Date 

 when 

 plates 

 were 

 poured. 



2.5.92 



eq 



05 

 cm' 



rH 



17.6.92 



2.5.92 



CD 



Unfiltered 



Paper 

 filtered 





