6 4 



CROLAS, DR. — Le Phylloxera dans le department de 

 l'Ain. Le Phylloxera An. II (i8;8) p. 43. 



Used the following mixture to sustain the vine during the treat- 

 ment for the destruction of phylloxera and with good results : 



Potassium Chloride 60 parts 



Sulphate of Iron 4 " 



Sulphur (powdered) 36 " 



Used 25 grams per vine. Mentions (P. 46) an excellent fertiliz- 

 er for vines known as "Davis Fertilizer Insecticide" composed 

 of calcium carbonate, Sulphate of Iron, and caustic potash. 



65 CROZIER, A. A.— On the Effects of Certain Fungicides 



upon the Vitality of Seeds. 



Jour. Mycol., Vol. VI, (1890), pp. 8-11. 



Seed corn soaked 24 hrs. in solution of 1 lb. S. of I. to a bushel 

 of seed, with sufficient water to cover the grain. 



Result: Neatly as injurious effect as Sulphate of Copper. No 

 scorching of leaves observable even with the strongest solution. 



66 CUGINI, G. — Sull' utilita del trattamento dei frutti poma- 



cei col solfata di ferro. 



B. Ort. Firenze, An. XII, (1887), pp. 51-56. 



Explains M. Ville's observations. The S. of I. is forced through 

 the stomata, or by osmotic action through the cell wall of the 

 outer skin of the fruit, and occasions increased work of the 

 plasma, and in the presence of light the formation of numerous 

 chloroplastids, and these lead to greater activity in the process 

 of assimilation, whereby growth results. 



67 CUGINI, G. — Intorno al modo di esistere del ferro nelle 



piante. 



Staz. Sper. Agr. Ital. Vol. XXVII, p. 649. 

 Disputes the views of Molisch. 



68 CULERON, P. — Nouveau mode d'emploi du sulfate de 



fer contre la chlorose. 



Jour. Agr. (Paris), T. II. p. 340. 



Used one Kgo. S. of I. to 40-50 1. water per vine. Recommends a 

 compost made of S. of I. one part, grape marc three parts. 



69 DAVY, SIR HUMPHREY.— Elements of Agricultural 



Chemistry. 



London, 1814, p. 334. 1 



