17 



results, if the emulsion is to be used at ouce. This gives us. then, by far the 

 most eonveuient kerosene enuilsiou, when small quantities are required for 

 immediate use. 



The preparation is simple. The requisite amount of kerosene is placed 

 in a dry vessel and flour added in the proportion of eight ounces to cue quart 

 of kerosene. It is then thoroughl.v stirred and 2 gallons of water are added 

 for ever.v quart of kerosene: the whole is then vigorousl.v churned for from 

 two to four minutes, and the emulsion is ready for use. When re<iuired for 

 immediate use, two ounces of flour will emulsify one quart of kerosene: but. 

 <iu standing a few hours, the kerosene will separate. However, it has been 

 further found by Mr. Shutt that, by scalding the flour before adding the 

 kerosene, an excellent emulsion which does not separate in the least after 

 one week, can be prepared with two ounces of flour, by mixing the resulting 

 paste with one quart of kerosene and emulsifying with two gallons of water. 

 Dr. Fletcher. 



While HcllchoiT. — This is a vegetable poison, being the tinel.v powdered 

 roots of ^'cl^(ltl^l(ln alhinii. It is useful for leaf-eating insects and root maggots. 

 Although ver.v poisonous to insects, owing to the poisonous principles being 

 siiluble, it can be safely used where the arseuites would be dangerous. It can 

 lie applied as a dr.v i)owder or as a liquid mixture, using one ounce to two 

 gallons of warm water. 



Insect PoirOcr (Pi/retlinnii. Biihach). — This is another vegetable in.secti- 

 <ide of special value, from tlic f.-iet, although it is extremely active in its 

 effects upon nearl.y all insects, it is ]u-acticall.v harmless to human beings and 

 the higher animals. It is the pulverised flowers of some i)lauts belonging to 

 the genus Pi/rethnim. It is useful for many household pests, as flies, mosqui- 

 toes and wasps, all of which are quickly affected, either by having a small 

 quantit.v thrown into the air of a room by means of an insect-gun or small 

 bellows, or by a small quantity (a teaspoonful) being ignited and allowed to 

 smoulrler. It .seems to ha\-e a marked eifect upon the breathing organs of 

 insects, AMiere practicable, a dry ajiplication gives the best results. If mixed 

 witli four times its weight of common flour, and then kejit in a tightl.v closed 

 vessel for twenty-four hours, the mixture will kill nearly all caterpillars it is 

 applied to, and in this strength becomes the best remedy for the caterpillar 

 of the Imported Cabbage Butterfly. It can also be use<l mixed with water, 

 1 oz. to 2 gallons of water. — Dr. Fletcher. 



No. (!. — Tolntcco and Soap Waxh : — 



Soak 4 lbs. waste tobacco in 9 gallons hot water for four or five hours (or 

 in the same quantity of cold water for four or five days) : dissolve 1 n>. whale- 

 oil soap in 1 gallon hot water: strain the tobacco dei'oction into the dissolved 

 soap and apply the mixture to iiffected trees with a spray i)ump, using a fine 

 nozzle and all the force possible. Or the mixture may be applied directly to 

 the insects with a swab or brush. A good summer \^■ash for all forms of 

 aphides. 



No. 7. — Resin ^y^t■^h. — For Aphis and Scale Insects: — 



Resin 4 It)s. 



Sal soda 3 „ 



B 



