360 PLUM. 



of knowing where it was procurable in England, I add the 

 following information, which was kindly sent me during July, 

 by Capt. Corbett, from Toddington : — 



"The Knapsack Pump, or No. 1 'Eclair,' used at Tod- 

 dington plantations, will be to be had of Messrs. Chas. Clark 

 and Co., Windsor Chambers, Great St. Helen's, E.C., sole 

 agents. One great advantage is, that the movement of the 

 man keeps the liquid agitated. It is an admirable instrument, 

 and we like it better than anything." — (R. J. C.) 



All those who desire to study the instructions and infor- 

 mation in detail regarding the methods of application of Paris- 

 green, by which it is found to act trustw^orthily and safely, 

 will find them in the publications noted below ; and I have 

 entered at such great length on the subject, as it is of vital 

 importance to the fruit-growing industry to have some' means 

 at hand by which the caterpillar plague can be exterminated; 

 and at present, excepting mineral oil and soft-soap wash, — 

 which also has dangers to leafage — we do not know^, either by 

 published documents, or by our own experiments wdth most of 

 the ordinary applications, of anything which answers as well 

 elsewhere and gives hope of doing so here, when the manage- 

 ment of it is properly gained, as Paris-green. 



For many details regarding composition and method of 

 use of Paris-green, see " Paris-green as an Insecticide," 

 'First Annual Pieport on Injurious and other Insects of the 

 State of New York,' 1882, by Dr. J. A. Lintner, State 

 Entomologist, pp. 25 — 34 : Albany, U.S.A. ; " Notes on Paris- 

 green," pp. 8 — 16, in * Seventh Annual Report of Noxious and 

 other Insects of the State of Missouri,' 1875, by Prof. C. V. 

 Riley, now Entomologist of Department of Agriculture, 

 U.S.A.; "Paris-green," 'Fourth Report of United States 

 Entomological Commission, U.S. Department of Agriculture,' 

 1885, pp. 143 — 148; and other reports quoted from in pre- 

 ceding paper. 



