THE CALCEOLARIA HOUSE. 133 



difficult plants to grow well at least this is the com- 

 plaint of amateurs. ' Ah ! ' they say ' we like them, but 

 they are so much infested with or liable to the insect ; ' 

 so they give up the idea of growing them. 



I know very well that to grow either of them in a 

 mixed collection of plants is far more difficult than it is 

 to grow them in a house by themselves. This is why I 

 particularly wish to impress upon the reader the neces- 

 sity of devoting a house almost entirely, if not quite, to 

 the exclusive growing of these and some other plants, 

 as complete collections of the same species and their 

 varieties. The difference required in the treatment of 

 the various genera call aloud for the exclusive devotion 

 of compartments of houses, or departments devoted solely 

 to each and its allies. No one can grow Geraniums and 

 Calceolarias and Cinerarias all together at one and the 

 same time ; by attempting to do so a miserable failure 

 is the result, and extorts complaints against these indi- 

 vidual species. Grlass is now cheap, and by following 

 up my method in the construction of houses, and by the 

 economical way of glazing, heating, &c. much larger 

 houses can be built for the same prices usually paid for 

 places half the size. I can guarantee this, and I am 

 fully prepared to give full illustrations and detailed 

 estimates with practical information how to do it. 



The house illustrated above, which is precisely the 

 same as for the forcing of the Pink and Carnation, costs 

 about half the amount that most professional builders 

 charge for the construction of a similar place. I see by 

 the price lists of various builders I have now by me that 

 such a house complete will cost not less than 155., 

 whereas my estimate is 77. 18s. complete, without the 

 stage for the plants. Then why not devote a house to 



