The spores and mycelium from the last six cultures were 

 transferred to pure cane extract on February 4, after twelve 

 days' immersion. The first three produced a good growth, 

 with macroconidia, in two days, and the remaining three were 

 then beginning to grow. All sliowed a good growth, with 

 macroconidia, in four days. 



Formaldehyde. 



September 4. September 13. 

 |Peroentage. ^ 



October 2. 

 Percentage 



001 

 002 

 003 

 0-004 

 0-005 

 0-006 

 0-007 

 0-008 

 0-009 

 0-01 

 Control 



Oct. 8. 



Good 



do. 



do. 



do. 

 Growing 

 Good 

 Nothing 



do. 



do. 



do. 

 Good 



Oct. 15. 



Good 



do. 



do. 



do. 



do. 



do. 

 Nothing 



do. 



do. 



do. 



Spores from the first ten cultures were transferred to pure 

 cane extract on September 16, after twelve days' immersion ; 

 no growth resulted. 



The following table summarizes the results of the 

 foregoing experiments. Tlie first column gives the highest 

 percentage in which the fungus grew, while the second 

 gives the lowest observed percentage in whicli no growth 

 occurred. The third and fourth columns give the same 

 quantities converted into fractions of a " normal solution," 



