50 Indian Insect Pests, [Vol. L 



In this connection the following remarks ^ by Professor Riley, the 

 United States Agricultural Entomologist, are of interest :— 



'* There is no large firm in this country which makes a business of handling the 

 .various insecticides and machinery, but the trade is divided between some dozen or 

 more principal firms who handle principally goods of their own special makes under 

 proprietary marks or letters patent. 



" The cyclone nozzle is manufactured by several firms in this country (it is not 

 patented) also by firms in France and Australia. Thos. Sommerville and Sons, of 

 this city, make the ordinary form at 5 dollars per dozen, and the Vermorel modification 

 at 18 dollars per dozen. This latter style has a degorging rod, and is especially 

 adapted to spraying heavy liquids, as lime-water for fungicide purposes. A wood-cut 

 of this nozzle, entire, and in section, is enclosed (PI. IV, fig. 4, h, c) ; V. Yermoral* 

 Villefranche sur Rhone, France, is the manufacturer in Europe ; Kutzner Bros., 

 Masterton, New Zealand, manufacture a single and triplet cyclone ; these we have not 

 seen. 



" Of pumps we use almost exclusively those made after the style known as the 

 aquapult (pi. IV, fig. 3), the essential feature of which is a piston cylinder in a large 

 outer cylinder, and of such relative dimensions that the downward stroke displaces 

 as much water as the upward stroke lifts, thus securing constant pressure in what 

 is practically a single cylinder pump. The size of the pump must be in accordance 

 with the amount of work desired to be accomplished. 



" Paris green and London purple are the only preparations of arsenic in general 

 use here. The former can be supplied readily by any manufacturing chemist, and 

 the latter is controlled entirely by Hemingway and Co., of London and New York 

 City." 



An aquapult force pump of the kind recommended by Professor 

 Riley has been received from Messrs. Woodin and Little, of 509, 

 Market Street, San Francisco, U. S. The pump gives a very finely 

 divided spray, but it is impossible to speak definitely as to its merits 

 until it has been tried in the field. It is proposed to have it experi- 

 mented with, for applying kerosine emulsion to destroy Coffee Scale in 

 South India. 



Force pumps have been received from Messrs. Rumsey & Co., of 

 Seneca Falls, New York ; they have not yet been experimented with, but 

 appear to be suitable for applying washes, such as London purple and 

 Paris green. 



A supply of London purple from Messrs. Hemingway & Co., of 60, 

 Mark Lane, E. C, London, has also been received for experiment. 



14.— SHORT NOTES ON MISCELLANEOUS INSECT PESTS, 



Lepidoptera, 



In the Museum collections is a specimen of the Noctues moth Helio- 



this armigera, ticketed as having done injury to 



the poppy crop in Patna in March 1879; there is 



also a half-eaten poppy-seed capsule apparently eaten by this worm, 



which is ticketed as having been damaged by an insect known as kujra ; 



that is also injurious to potatoe. 



» Extracted from a letter dated Washington, 29th May 1888. 



