78 



[1900 



Another recipe is for " kerosine emulsion " of the ordinary strength 

 for genernl application ; «/c. kerosine or refined coal oil, 1 pint ; common 

 laundry soap, ^ oz. ; rain water, ^ pint. The soap was boiled in the 

 water till all was dissolved, then the boiling soapsuds were poured into 

 a watering-pot containing the kerosine, and churned with a garden- 

 syringe until the emulsion was complete. This generally takes about 

 five minutes, but sometimes longer. When this emulsion is made, it 

 can be bottled up for future use. When using it, either as a wash for 

 sponging trees or for spraying, it must be diluted with nine times the 

 quantity of water. Should the oil in the emulsion after a time separate, 

 it is well to warm it, and by violently shaking the bottle it will again 

 become tit for use. In diluting the emulsion, use warm water. See 

 p. 14 of ♦ Report of Entomologist and Botanist, Department of Agri- 

 culture, Canada,' 1887. 



Pocket or Bladder Plums. Exoascus ijruni. 



"^J 



^k 



EXOASCUS PKUNI. 



Pocket Plums,'' inflated and distorted by fungoid 

 attack. (After Sorauer.) 



It has seemed desirable to insert the following observations on the 

 diseased growth popularly known as " Pocket " or " Bladder " Plums, 

 as, although this is due not to insect but to fungoid infestation, at one 



