120 THE UNIVERSITY SCIENCE BULLETIN. 



SUMMARY. 



A number of new alkyl ethers of substituted thioureas have been 

 prepared. While usually these ethers are solid crystalline com- 

 pounds, the normal butyl derivatives thus far isolated are basic oils. 

 The di-m-xylyl thiourea gave the free base and not the hydrogen 

 iodide salt with normal propyl iodide. 



Lawrence, Kan., July, 1922. 



