io8 GARDENING 



that the house is thoroughly secured before hght- 

 ing the cone (thoroughly air-tight). A calm 

 evening should be selected for the operation, and 

 the cone must be well-lighted all round the top 

 before leaving it in a house, when it will smoulder 

 about half-way down in from ten to twenty minutes 

 before emitting the vapour, which will continue 

 until the contents of the small bottle inside the 

 cone is exhausted. 



In calculating the number of cones required for 

 large houses a reduction of 30 per cent, in cone 

 power, commencing from 3,000 cubic feet and 

 upwards, will be found of sufficient strength for 

 ordinary aphis. Thus, too, No. 3 cones for a 

 3,000 ft. house will suffice, but much depends upon 

 the security of the house, as the vapour has great 

 affinity for the outside air. 



LOAM 



Is earth easily worked at any season, and being 

 sufficiently retentive, yet not so much so as to hold 

 water. 



Maiden loam is the fat earth forming the top 

 spit of a pasture ground, and that with a yellowish- 

 brown is the best. 



Sandy loams are the easiest to work and yield 

 the earliest produce. 



Chalky loams are early and fertile if there is 

 not too much chalk. 



Clayey loams are bad to work either in wet or 

 dry weather, being wet and sticky in one case and 

 dry and cracking in the other. 



