412 Agricultural Experiment Station, Ithaca, N. Y. 



rapidly and energetically by heating the flowers of sulphur until it 

 melts ; the fumes are then given off in great abundance. Our prac- 

 tice has been to put the sulphur in a shallow pan and then set it 

 over an oil stove, having the flame turned just high enough to keep 

 the sulphur in a melted condition. Almost continuous watching 

 was necessary to prevent^ the material from taking fire, for if this 

 should occur it would prove almost instantly fatal to all the plants 

 which might be reached by the gas. The difiiculty was in a great 

 measure overcome by L. C. Corbett, at that time an assistant in tliis 

 department, who suggested the use of a sand-bath as a means of 

 modifying the intensity of the heat. Our present outfit is shown in 

 Tig. 76. It consists of two pans placed on an ordinary hand oil" 



76. — Apparatus for evaporating sulphur. 



stove. The lower pan is half filled with clean, coarse sand, and 

 the upper one contains the sulphur. By its proper use our houses 

 have been kept remarkably free from mildew, even under very 

 adverse circumstances. But there is constant danger that the sul- 

 phur will become heated to the burning point, and then the entire 

 stock of plants in the house is lost. This use of sulphur is often 

 very convenient, but the work should be placed in the hands of a 

 most trustworthy person. If a house should be thoroughly treated 

 in this manner every week or two, scarcely any mildew could 

 develop. 



TEEATMEJ^T OF CAENATION RUST. 



There is probably no disease of carnations which is a greater 

 menace to their successful culture than the rust. This disease is 

 ■caused by a fungus ( TJromyces caryopMlUnus). It is of European 



