April, '11] hunter: RESEARCH FELLOWSHIP 161 



Mr. Smith: I think that every person who has been West knows 

 that there are some spots on the Pacific coast where it is so hot that 

 it actually bakes the scales on the trees. 



Mr. Sanders: I would like to ask Mr. Dean if he has had any 

 objection from millers in respect to danger from fire. 



Mr. Dean: I will state that w^here this experiment was conducted 

 there was one of the most intelligent millers I ever met, and it was 

 his opinion that you could go up to 150° or 160° without danger. No 

 oil waste should be left in the mill. You do not have to go up to a 

 temperature of 150°, — 130° is plenty high enough. 



Mr. Washburn: You would have to convince the insurance 

 company, probably, that there was no danger. They refuse to allow 

 the use of carbon bisulfid, and I suppose they would possibly object 

 to heat. ' 



Mr. Dean: As you say, there is a chance for an objection there, 

 but we can easily prove what the combustion point is. Carbon bisulfid 

 is out of the question in a mill. It does not go up where the flour 

 moth is. With hydrocyanic acid gas in the laboratory we killed the 

 eggs in three inches of flour by subjecting them to the same strength 

 as in the mill, but at three and a half inches some escaped. The 

 larvae of Tribolium perished at four inches. 



President Sanderson: I should like to ask Mr. Dean if he has 

 looked into the matter as to whether these insects exist in the mills 

 in southern Arizona. 



Mr. Dean: I have not investigated that at all, but I do not know 

 of any mills in' Arizona. 



President Sanderson: I am sure we have all been intensely 

 interested in this paper. It is particularly so to me, and I am sure 

 that if heat will destroy these insects, it will destroy others. We 

 will now have a paper by Mr. S. J. Hunter. 



THE GRIESA RESEARCH FELLOWSHIP IN ENTOMOLOGY 

 AT THE UNIVERSITY OF KANSAS 



An Announcement by S. J. Hunter 



Mr. W. S. Griesa, proprietor of Mt. Hope Nurseries, Lawrence, 

 Kan., has established the Griesa Research Fellowship in Entomology 

 in memory of his father, the late A. C. Griesa.' In establishing this 

 felloAvship it was the wish of the founder that the holder should devote 

 himself to a fundamental investigation of one of the several entomol- 

 ogical problems ever present with nurserymen. 



