m) 



The pycnidial spores (or sporules) are from two and u half to 

 three times the length of the conidial spores. The sporules are 

 borne on pedicels and are not contained in sacs as are the winter 

 spores. A pycnidiuni may properly be called a stylosporous 

 perithecinm. These four kinds of spores, vary in size and are 

 of a different origin. The condial spores are the only kind not 

 produced in perithecia or flask-shaped bodies. The conidial 

 spores are borne on filiform, simple hypliae. The sac spores 

 are called sporidia, the thread mass are conidia, the minute 

 spores (or cells) are the spermatid , and the pycnidial product are 

 the sporules. 



THE CHAIRMAN: Doctor, 1 tliiiik 1 will have to ask for 

 unanimous consent, bwause we liave now gone to tlie limit of our 

 rule. 



DR. MlCKLEBOROrdll : I would ask conseni dial T may 

 be able to present a statement that I think is of some imi»ortance 

 in the work which I have been doing just lately. 



THE CHAIRMAN: Can you give us an idea (»f (he tijiie? 



DR. MICKLEBOROUCH: I will take just a few minutes. 



THE CHAIRMAN: Dr. Mickleborough asks unaniuKms con- 

 sent that he proceed for a few minutes to complete tliis state- 

 ment. It seems to be necessary to ask that, because we are work- 

 ing under a rule. Is there objection? If not, the consent is 

 given. 



DR. MICKLEBOROUGH : I will take up the other feature. 

 I have had under consideration all forms of sprays and cutting 

 and things of that kind, and have examined the cuttings in many 

 parts of NeAV York State and also in Pennsylvania. I want to 

 make this statement, not to produce any sensation or create any 

 false impression : Within the last live months I have had as- 

 sociated with me in this work an experienced bacteriologist, and 

 last Friday I called upon my associate and I asked him to give 

 me the language that I might use as to wliat we had accomplished 

 up to this time in trying to find an entirely different remedy for 

 the chestnut tree blight. I will read you the words that he ap- 

 proved of last Friday ; that was February 17, 1912 : 



