Septembeb 28, 1917] 



SCIENCE 



317 



cussion of rust work, with especial reference 

 to his work in preparation of the rust section 

 of the North American flora. Dr. Stakman 

 iwinted out five problems in the study of grass 

 rust: (1) Biological specialization; (2) accu- 

 rate knowledge of distribution of biologic 

 forms in relation to rust epidemics; (3) the 

 role of grass rusts in over-wintering uredinia ; 

 (4) the role of grass rusts in passing epidemics 

 from the barberry to grain; (5) grasses acting 

 as agencies for passing epidemics from one 

 grain field to another. 



2. The relation of the harherry to rust epi' 

 demies; Leaders, Dr. E. M. Freeman, Dr. E. 

 M. Wilcox. In the absence of both of the 

 above, Dr. Stakman led the discussion upon 

 this topic also. Mr. Frank Piemeizel, who 

 has charge of the Rust Survey now in progress 

 in the Mississippi Valley, stated that the sur- 

 vey so far had indicated that stem rust over- 

 winters in the extreme South in the uredinial 

 stage, and that the amount of infection upon 

 grain was foimd to decrease in passing from the 

 south to the north. South of Ames, Iowa, no 

 infection upon barberry was found, but north 

 of that point no infection was found upon 

 grain up to that time, except in the vicinity of 

 aSected barberry bushes. 



3. State and Federal legislation against the 

 "barberry ; Leaders, Professor L. H. Bolley, Dr. 

 L. R. Jones. Professor Bolley reviewed the 

 methods used in securing eradiction of barberry 

 in North Dakota, which is the only state having 

 a law declaring the barberry bush a nuisance. 

 The work of eradicating the barberry bushes 

 in North Dakota has almost been completed. 

 Dr. Jones was unable to be present at the 

 session. 



TUESDAY, JULY 10 



The forenoon was spent in visiting the farm 

 near Madison operated by the Agronomy De- 

 partment of the University of Wisconsin. In 

 the afternoon the party went by auto from 

 Madison, Wisconsin, to Watertown, Wiscon- 

 sin, inspecting various grain fields on the 

 way. In the evening a supper, smoker and 

 round-table was held at the Commercial Hotel 

 at Watertown. The following discussions 

 were given : 



1. State and Federal cooperation in fighting 

 cereal diseases during our food emergency; 

 Leaders, Dr. H. B. Humphrey, Dr. F. L. 

 Stevens, Dr. S. G. Kern. Dr. Humphrey out- 

 lined a plan for campaign for eradication of 

 preventable cereal smuts. This work, depend- 

 ent upon the passage of the Food Bill, is to be 

 done in cooperation with the Extension Service, 

 and is to consist of two phases : first, publicity 

 campaign, by means of the press, posters, etc. ; 

 second, men to be sent into the field to co- 

 operate with the Extension Service in secur- 

 ing seed treatment. The subject of com- 

 munity seed treatment plans was also brought 

 up for discussion. Dr. Kern spoke for the 

 need of closer cooperation between the Fed- 

 eral and State Departments, and between states 

 in their work, and of the value in correlating 

 work upon general problems with local ones. 

 Dr. Stevens was not present at the meeting. 



2. Recent investigations on yellow stripe 

 rust; diaries W. Hungerford. An account 

 was given of work being carried on at Cor- 

 vallis, Oregon, upon this disease. 



WEDNESDAY, JULY 11 



The day was spent in Juneau, Wisconsin, 

 Beaverdam, Wisconsin, and on the farm of 

 Mr. Kruger near Beaverdam. Meetings were 

 held at the Court House in Juneau, and at 

 the Mealy Hotel at Beaverdam. These meet- 

 ings were open for general discussion and 

 transaction of business. 



The following business was transacted at 

 the various meetings: 



It was voted to have the secretary com- 

 municate with the Secretary of the Interstate 

 Cereal Conference to arrange, if possible, to 

 have the next meeting of Cereal Pathologists 

 held at the same place as the Cereal Con- 

 ference, with one day overlapping for joint 

 meeting. 



A committee consisting of Dr. L. R. Jones, 

 Dr. H. B. Humphrey, drew up the following 

 resolution, which was unanimously adopted: 



To THE Honorable, 



The Secretary of Agriculture. 



We, the plant pathologists representing the 

 chief grain-growing states in conference 



