J. V. Eyre and E. 8. Salmon 489 



Ex])er. 12. Solution containing 0-6 % liver-of-sulplinr (0-26 % S.S.) 

 awfZ 1 % so// A'Oft^j. 



l5< da)/. Mildew checked, but many conidiophores still visible. 



Zrd day. The conidiophores still visible on many patches, but no further develo])- 

 ment of others. 



8(/» day. All the patches greatly checked, many quite sterile and dead or dying; 

 on each leaf, however, two or three patches showed minute groups of conidiophores, 

 usually towards the centre of the patch. 



Vlthday. Each leaf now with some patches bearing vigorous conidiophores — 

 here and there even "ijowdery." 



Exper. 13. Solution containing 0-6 % liver -of- sulphur (0-26 % S.S.) 

 rmd 0-5 % soft soap. 



Isl day. Mildew checked, but erect conidiopliores visible. 

 Srd day. All the patches still greatly checked. 



5th day. Many patches on both leaves developing conidiophores ; a few patches 

 almost "powdery." 

 StJi day. As above. 

 I2th day. Many patches now almost or quite "powdery." 



Exper. 14. Solution containing 0-6 % liver-of-sulphur (0-26 % S.S.) 

 and 0-25 % saponin. 



1st day. Mildew checked. 

 Zrd day. As above. 



bth day. Most of the patches still checked ; a few patches producing a few 

 conidiophores. 



8(/i. day. All the patches now producing abundant conidiophores. 



Exper. 15. Solution containing 0-8 % liver-of-sulphur (0-34 % S.S.). 



\8t day. Patches of mildew more or less checked. 



^th day. Most of the patches showing some erect conidiophores. 



Q>th day. Mildew very severely checked; some of the patches brown and dead, 

 accompanied by the death of the whole area of the subjacent leaf-cells (extending 

 through to the under-surface of the leaf) ; some patches showing a few conidiophores. 



lOlli day. Nearly all the patches killed ; a few still bearing a few scattered 

 conidiophores. 



Exper. 16. Solution containing 0-8 % liver-of-sulphur (0-34 % S.S.) 

 and 1 % soft soap. 



1st day. All the patches of mildew checked, dormant and sterile. 

 <ith day. AO the patches of mildew quite sterile (the tips of both of the leaves 

 yellow and shrivelled, due to the accumulation there of the fluid). 

 6lh day. All the patches sterile; no further injury to the leaves. 

 lOlh day. All the patches dead. 



