malin chip in this state. Some land so infested with the smut as to 

 make it impossible to grow protTtable crops of onions has produced 

 clean crops after treatment by this method. In one case the smut 

 was so severe that the land had to be abandoned, but it now rents for 

 ^50.00 an acre as onion land. The apparatus can be made by any 



Fig. 4. ShowiiiL; tank suspended between the handles uf the siiwer. 



local plumber, and on the whole the formalin treatment constitutes 

 one of the most effective methods for the control of onion smut. It 

 has each year resulted in saving many thousands of dollars to onion 

 growers. 



Note. — Formaldehyde solution, U. S. P., 40 per cent, volume can 



be obtained from the Perth Amboy Chemical Works, 100 William 

 St., New York City, at the following rates : 



In 400 lb. barrels, 9c per lb. 



In 250 lb. barrels, 9/4^c per lb. 



In 125 lb. kegs, f. o. b. New York, 9^c per lb. 



In 60 lb. kegs, iic per lb. 



In I lb. bottles, 50 to a case, 19c per lb. 



