CONVENTION OF AMERICAN AGRICULTURAL COLLEGES. 319 



characteristics and variations due to climate of these different races. 

 He i cnmiineiided that a committee of 3 be appointed to undertake 

 cooperative tests of* different races of peaches under different climatic 

 conditions. The committee appointed in conformity with this recom- 

 mendation was 11. II. Price, of Texas; E. J. Wickson, of California; 

 G. il. Powell, of Delaware, and L. R. Taft, of Michigan. 



S. B. Green, of Minnesota, read a paper entitled " Horticultural 

 education in Minnesota," in which, by giving a list of the fruits of merit 

 in Minnesota, he brought out the fact that the horticultural experience 

 of the Hast or of the Pacific Coast may be of little use in the North- 

 central United States. It has been found necessary to prepare text- 

 books especially adapted to these peculiar conditions, and this has 

 greatly aided in the solution of the problem of horticultural education 

 in this region. 



The subject of seed testing was reported upon by the committee on 

 that subject and rules governing this work as formulated by the com- 

 mittee were adopted by the section (see p. 314). 



Two other papers were submitted to this section, namely, "An exper- 

 iment, its conception and methods of procedure," by H. L. Bolley, of 

 North Dakota (see p. 313), and "A bacterial disease of cabbage and 

 cauliflower," by H. L. Russell, of Wisconsin. The latter discussed the 

 history, symptoms in the field, and cause of a disease of cabbage and 

 cauliflower which has been studied by the author for several years. 

 The investigations indicate that the disease is due to a yellow pigment- 

 forming bacillus which has been separated in pure cultures and used in 

 the production of the disease on different plants by means of inocula- 

 tion. The paper also discussed the relative susceptibility of different 

 host plants, modes of entering the plants, sources of infection, influence 

 of climatic conditions, and remedial measures. 



SECTION ON ENTOMOLOGY. 



At the session of the section on entomology only two persons were 

 present, and these simply went through the form of holding the meet- 

 ing and nominating officers. The following papers were read by title: 

 "Teaching entomology," by E. E. Bogue, of Oklahoma; "The western 

 pine butterfly," by J. M. Aldrich, of Idaho ; and " Aspidiotus perniciosus 

 in North Carolina," by G. McCarthy, of North Carolina. 



SECTION* ON MECHANIC ARTS. 



In the section on mechanic arts a paper on "Electrical engineering 

 in Utah" was read by J. Jensen, of Utah. In this paper the author 

 discussed the extent of the available water power in Utah above the 

 irrigable region and the use that is being made of this power by differ- 

 ent companies in the generation of electricity. " It appears that a mil- 

 lion horsepower as an estimate for the total available hydraulic power 

 of the State is a very conservative figure." Through the accomplish- 

 ment of long-distance transmission of power electrically this energy 



