EXPERIMENTS WITH REFERENCE TO THE POTATO DISEASE. 55 



Kitchen Garden 32 feet in length, and a row of Indian corn 

 was planted on each side of it at 2 feet distance. Tlie result 

 must be considered unfivourable, inasmuch as it appears that 

 upwards of 14 per cent, of the produce was diseased. 



Experimenls ivith Jersey Blue Potatoes, -planted in lulls, ivith 

 a composition of Potash, Fat, and common Salt, with Water. 

 For these experiments, the results of which are given in 

 Tables II. III. and IV., a preparation was made of tlie above- 

 mentioned substances, in the proportion of 20 lbs. of potash (the 

 potash of commerce), 22 lbs. of common fat, 7 lbs. of common 

 salt, and about 36 gallons of water. The potash was dissolved in 

 rather more water than was sufficient to hold it in solution ; the 

 fat was then added, and the mixture frequently stirred till all the 

 fat was acted upon by the potash. The rest of the water, holding 

 in solution the common salt, was then added, and the compound 

 frequently stirred until it thickened into a gelatinous mass. 



Table II.— Results of Experiments with Jersey Blue Potatoes, 

 planted whole, in hills, each hill occupying one square yard. Com- 

 position of potash, fat, common salt and water applied to the Sets ; 

 Plants not earthed up. 



