s? 



or sack containing the seed entirely full, but always leave room 

 for the grain to move about freely. 4th. Leave the seed in the 

 second vessel of water fifteen minutes. 



THE POTASSIUM SULPHIDE TREATMENT. 



Our experiments this year seem to show that a weak solution 

 of potassium sulphide is nearly if not quite as good as hot 

 water for treating oats to prevent smut. Since this method may 

 prove more convenient than the Jensen method for treating 

 small quantities of grain, we give directions for carrying it out. 

 The potassium sulphide is cheapest in the "fused" condition; 

 it costs about 25 cents a pound. One pound of the sulphide 

 should be dissolved in 24 gallons of water. Place the seed in a 

 wooden vessel and pour on the solution until the seed is covered 

 several inches deep. Stir the solution before pouring it on the 

 grain and thoroughly mix the seed several times before taking 

 it out of the solution. The oats should stand in the solution 24 

 hours after which they may be spread out to dry. 



It will probably be best to sow the seed as soon as possible 

 and before it becomes thoroughly dry." 



NOTICE. 



We are desirous of obtaining all the information possible 

 concerning the fungous deseases of economic plants. All such 

 information will be gratefully received. Specimens of diseased 

 plants can be sent by mail at one cent for each cunce. They 

 need only be wrapped in paper and directed to the station. 



We are also anxious to get specimens of grasses and forage 

 plants of the state together with information concerning their 

 habits and value as forage, either for hay or grazing. 



Address THE BOTANIST OF THE AGRICULTURAL EXPERIMENT 



STATION, BROOKINGS, SOUTH DAKOTA. 



