POTATO. 



203 



ease is apparent, as it must be used as a preventive and used 

 before the disease is seen. 



Bordeaux Mixture is made as follows: Dissolve five pounds 

 of blue vitriol (sulphate of copper) in ten gallons of water in a 

 wooden or earthenware vessel. As this substance dissolves very 

 slowly in cold water and solutions of it are very heavy, it is well 

 to suspend it near the top of the water. (It dissolves more 

 quickly in hot water.) In another vessel, slake five pounds of 

 good fresh quicklime in ten gallons of water. When the mixture 

 is wanted, pour the blue vitriol and lime slowly at the same time 

 into a barrel containing thirty gallons of water, stirring all the 

 time. When thoroughly stirred the mixture should be of a clear 

 sky blue color. After being mixed for a day or two the mixture 

 loses much of its strength, so it is well to use only that which 

 has been mixed for a short time. There are many formulas used, 

 which vary as to the amount of, lime and water, but the above 

 gives good satisfaction when used properly. 



Internal Brown Rot is the name given to a disease which 

 has recently appeared in a few potato growing sections of this 

 country. It is first noticed by the darkening more or less of the 

 starchy portion of the tubers, without any manifestation of its 



presence on the outside; later 

 on the potato rots. The life 

 history of this disease is not 

 known, nor are any remedies 

 known for it. Ordinary pru- 

 dence, however, would indi- 

 cate that seed potatoes in the 



Fig-ure 1U2.— Internal brown rot of the least affected with this trOU- 

 potato. , , 



ble should not be planted. 



EGG PLANT. (Solanum melongena.) 



Native of South America. — Annual. — Stem erect and branch- 

 ing; flowers solitary and violet in color; seeds flat, of medium 

 size. The egg plant is but little used in this section, but can be 

 grown to perfection in our hot, dry summers. The seed must 

 be sown, even earlier than tomato seed, in the greenhouse or hot- 

 bed, but when only a few plants are wanted it will be found best 



