208 



Profs. Percy Frankland and Marshall Ward. 



.2° 



o 



H 05 



£3 03 



.2 g 



?3 O 

 P-i 



.2 S 



§ 1 



O O O O O rH 



© O ^ <M 



o o 



:CD O 



!M HH 

 O tO 

 tO tO 



of'*" 



"Volume 

 of water 

 1 employed 

 for plate 

 cultiva- 

 tion. 



g CNJ ^ H ht |^CO CM 





CO rH 



rfHn 



CO rH 



Number 

 of days 

 plates 

 were in- 

 cubated. 



CO M CO ^ N 



to to 



rH rH 



00 00 



1 



to tO 1 00 00 



rH rH 1 



Particular 

 flask and 



water 

 employed. 



* 



Ph ^ 



ftf.HHHHHH 

 c39tOtOtOtOtOtO 



Porcelain 

 filtered. 

 51 



51 



1— 1 rH 



to to 



Steamed. 

 51 

 51 



rH rH 



tO tO 



Number 

 of 



Li let L/V?o • 



CD .(> © rH tJI tO 

 HHNNNM 



co co co co co co 



H* tO 

 05 05 

 rH rH 



to CD 

 tO tO 



<M CO 

 05 C5 

 rH rH 



CO TP 



to to 



CM (M 



Date on 

 which 

 plates were 

 poured. 



24.6.92 



12.5.92 



16.6.92 



12.5.92 



16.6.92 



