APPENDIX. xxxix 



The oft-cited case of Vedalia destroying the cottony cushion 

 scale in California can have no application to this case, for the 

 circumstances there were so peculiar that they can rarely be dupli- 

 cated, and are not similar here. 



I am asked to express an opinion as to the work done and to be 

 done by the committee. I can only repeat what I have already 

 said, the work done by the committee as at present organized 

 is admirable, and I am unable to point out a method in which it 

 could be improved. 



Both the entomologist and the director thoroughly understand 

 the problem, and are working for success, a success that I now 

 think they will attain. 



As to the work yet to be done, I am not in a position to give an 

 opinion, because I had no time to cover the entire ground. From 

 what I could see at Maiden, Lynn and Swampscott, I believe that 

 for at least two years more a full force of men should be em- 

 ployed, using the methods that have proved so successful and 

 working from the outer limits toward the central district. 



The most useful men should in all cases be retained from year to 

 year, for they will be worth at least double the sum any new man 

 could be valued at, and will know just exactly what is to be done 

 in all cases and just what to look for. After a few years the force 

 of men could be safely reduced to the inspectors and a few ordi- 

 nary workmen, whose principal business would be a continuous 

 examination of the once-infested district, prepared to destroy any 

 isolated brood that may have escaped ; and finally this force could 

 be reduced to the director and a very few inspectors, who, with 

 the experience gained, could easily command the entire region 

 until lapse of time proved the insects exterminated. 

 Very truly yours, 



JOHN B. SMITH. 

 Dr. C. H. FEKNALD, Entomologist, Gypsy Moth Commission, Amherst, Mass, 



KEPORT OF PROF. CLARENCE M. WEED, D.Sc., OF THE NEW 

 HAMPSHIRE COLLEGE OF AGRICULTURE AND THE MECHANIC 

 ARTS, ENTOMOLOGIST OF THE AGRICULTURAL EXPERIMENT 



STATION. 



HANOVER, N. H., June 16, 1893. 

 To the Gypsy Moth Committee. 



GENTLEMEN: In response to the invitation extended by you 

 through Professor Fernald, I recently visited the various depart- 

 ments of gypsy-moth work, and beg leave to inform you of the 

 impressions thus received. 



