558 EXPERIMENT STATION RECORD. 



A paper on " Some results of recent studies of grass feeding Jassi- 

 dje," by H. Osborn and E. D. Ball, gave more or less detailed notes on 

 some 34 members of this family of insects and discussed methods of 

 repression. It was shown that while the loss from these insects must 

 be enormous, they may to a great extent be destroyed by the use of a 

 tar pan or hopper-dozer. Up to the present time, however, our knowl- 

 edge of the life histories of the species involved has been too meager to 

 furnish a certain basis for remedial measures. The paper gave the 

 results of studies of the life history of a number of species, the range 

 of their food i^lants, especially in the larval state, and the study of the 

 specific limits of a large number of species. 



A paper on "The use of steam apparatus for spraying" was read by 

 L. O. Howard. After describing a number of machines devised for this 

 purj)ose since 1882 the opinion was exiiressed that such apparatus will 

 seldom be constructed by the owners of even large orchards for their 

 own individual use, but that for community orchard work they are valu 

 able and will come more and more into use. They will prove most 

 valuable, perhaps, for spraying shade trees in cities and large towns. 



SKCTIOX ON MECHANIC ARTS. 



In the section on mechanic arts the first paper read was one by E. 

 Kidwell, of Michigan, entitled " Requirements for the proper govern- 

 ment of an educational institution." This paper i)rovoked sharp dis- 

 cussion, the criticisms of governing boards of these institutions being 

 vigorously combated. 



A paper on "Some lecture-room experiments in lubrication "was read 

 by A. Kingsbury, of New Hampshire. It was illustrated by means of 

 apparatus and diagrams. 



Other papers presented were "The engineering laboratory in its rela- 

 tion to the public," by W. F. M. Goss, of Indiana; " Some road tests 

 with a bicycle dynamometer," by C. A. Perkins, of Tennessee; "The 

 mechanic arts in the schools of the South," by H.C Powers, of Florida; 

 "Shop training in its relation to engineering courses," by L. S. Ran- 

 dolph, of Virginia; "Education in mechanical engineering and the 

 arts," by R. H. Thurston, of New York. 



A report on the efforts made to promote the passage by Congress of 

 the bill establishing engineering experiment stations was submitted and 

 discussed. 



