492 Fiinytculal Propert'ns of Certain Spiai/- Fluids 



Expers. 5, 6, 7, 8. Sohition containing 0-08 % S.S. and 1 % soft soap. 



The results obtained in all these experiments were the same as that 

 recorded above in Exper. 4, all the patches of mildew being sterile, 

 and either dormant, dyinp or dead by the (tth to 12th day. 



Exper. 9. Solution containing 0-08 % S.S. and 1 ",', soft soap. 



In this ex])eriment the action of the ammonium suli)liide was com- 

 pared with that of a solution of "]iver-of-sul])lnir" containing 0-13% 

 sulphide-sulphur. The results are given under '' Liver-of-sulphur," 

 Exper. 4 (see p. 487). 



Exper. 10. Solution containing 0-16 % S.S. and 1 % soft soap. 



In this experiment the action of the ammonium sulphide was com- 

 pared with that of a solution of "liver-of-sul]>iiur" containing 0-13 % 

 sulphide-sulphur. The results are given under " Lirer-of-sulphnr," 

 Exper. 3 (see p. 487). 



1915. 



Exper. 1. Solution containing 0-02 % S.S. and 1 % soft soap. 



1st day. Mildew checked; patches showing bases of conidiophores in hirgo 

 numbers. 



4lh (lay. Conidiophores remaining sliort. 



Ith day. Conidiophores still romaiiiiiig short, oven where very numerous; a 

 very few isolated groups of talloi' conidiophores on a few patches; some patches 

 quite sterile. The mildew obviously checked everywhere, and nowhere with 

 "powdery" patches. 



10/ /( diiy. A few patches with small groups of conidiophores. 



ISth day. The patches increasing in size. 



Exper. 2. Solution containing 0-03 % S.S. and 1 % soft soap. 



\sl day. Mildew much checked ; mycelium more or less collapsed and flocculent ; 

 very few, weak, isolated conidiophores visible. 



4lh day. The patches all iinicli cheeked and mostly sterile — a few with weak 

 conidiophores. 



lilt day. Most of the patches sterile with coIIaj)sed myceUum; .some patches 

 with weak short conidiophores; three patches showing very small groiips of vigorous 

 erect conidiophores. 



10/^ day. Four patches showing a very few erect conidiophores, the rest sterile. 



Vithday. Several patches with small tufts of conidiopliores. 



Exper. 3. Solution containing 0-04 % S.S. and 1 % soft soaj). 



1.11 day. Mildew nuieh checked ; mycelium more or less collapsed and tloeoilcnt ; 

 very few weak, isolated conidiophores visible. 



ith day. A few patches showing a few weak conidiophores; most of the jjatches 

 sterile. 



