26 



Prof. Marshall Ward. Experiments on the [Feb. 16, 



Remarks. 



Exposed 4^ hours each day. 

 J> The failures were incub- 

 ated as long as possible 



) In dark at 12° C, Dec. 31— 

 [ Jan. 4, and germinated, 

 f Jan. 4—6, 0—2° C. in 

 J and out 



one half. All at 12° in 

 laboratory from Dec. 31 



}- to. Jan. 10. Then2°— 5° 

 in and out. Exposed 



1 1 hour Jan. 10, and 5 

 J hours on 11th 



[ Over 9th, at 10° C. Other 

 j intervals, 2-5—5° C. 



J 



% 



m 



<D 



PS 



. 



Distinct, though 

 blurred M, owing 

 to softening of 

 gelatine 



No trace of E 



Sharp H 



No trace of X 



Good C 

 No letter E 

 No letter X 



Good H 



No trace of H 



Dried up without 

 germination at 

 first ; good M 

 eventually 



No trace of E 



No trace of X 

 Sharp E 



No trace of C 



Days 

 incubated. 





Hours of 

 sunshine. 



OS R s 5 Tfc 5 5 r £ 50 PS £ 



Date 

 exposed. 



* rp O iH oS 

 VO CO . 1-1 1-1 oh 



Date 

 made. 



fM CO CO 00 



ci £ £ £ d ~ £ d ££ 4. ~ " - 



Q ft ft * 



Kind of 

 plate. 



Spores and 

 gel. agar 



Spores agar 



Spores agar 

 >> 



Spores agar, 

 smoked back 



Spores agar, 

 smoked agar 

 back 



Nature of 

 screen. 



Yiolet 2 



Olive 4 

 Blue 1 

 Ruby 3 



Ordinary 10 

 Ruby 3 

 Olive 4 



f Blue 1* 1 

 \ Bluel* \ 

 [ Blue 7 J 

 Orange 6 

 Ordinary 9 



Ruby 5 



Green 8 

 Yiolet 2 



Olive 4 



Number of 

 experi- 

 ments. 



rH <N CO tJ< lO CO l> 00 90 rH <N CO 



rH rH rH rH rH 



