64 



one which combines the proportions so that no excess of either ingre- 

 dient results, for, as indicated, the hardening of the thick soapsuds re- 

 sults in clots and these interfere with spraying, while to skiui off the 

 emulsion and leave the mass below is a useless labor and loss of ma- 

 terial. 



In the Eiley- Hubbard formula we have evidently the exact propor- 

 tions carefully determined, and I feel obliged to recommend this formula 

 when giving advice to those wishing instructions as to preparation of 

 kerosene emulsion. 



Mr. Wallace read a note of which the following is an abstract : 



A NOTE ON SILK CULTURE. 



By Paul Wallace, Los Jngehs, Cal. 

 I Secretary's abstract.] 



The author reviewed the attempts which have been made to raise 

 Silkworms in this country, and stated that they had proven the entire 

 adaptability of the United States to this industry. He stated that all 

 that was needed to make it a success was either a bounty paid by the 

 Government or an import duty upon raw silk, but to his own personal 

 knowledge attempts in this directiou were thwarted by the work of 

 large silk manufacturers who were bitterly opposed to the establish- 

 ment of silk culture in America. He urged that the Association 

 should use its best efforts to foster a popular sentiment antagonistic 

 to such efforts on the part of the manufacturers of silk. 



Mr. Lintuer, in discussing this paper, contended that there is no 

 question as to our ability to raise good silk, but that it will not pay. 

 He spoke particularly of the work of the division of entomology in 

 experimenting in this direction. 



Mr. Cook read the following article by Mr. G. C, Davis : 



NOTES ON A FEW BORERS. 



By G. C. Davis, Agricultural College, Michigan, 



If we go on the principle that " every little helps," even though it be 

 slight and incomplete, then perhaps a few notes incidentally picked up 

 on our forest borers may be of some utility at this time. Dr. Packard's 

 work on forest insects, so recently issued, is of inestimable value to the 

 working entomologist, but by the reporting of the few observations we 

 happen to make while at our other work we can make the volume still 

 more complete and helpful. Perhaps the habits of some of these 

 species may already be known, but as they have riot been specially re- 

 ported in this work, reference is here made to them. 



