78 ON THE CULTURE OF THE PINK. 



sizes of boilers, as given above, will be found somewhat more than 

 equal to the work assigned to them, and by using coke entirely in- 

 stead of cinders, or a mixture of them in different pjoportions, in- 

 creased power may be obtained. 



With respect to pipes, I have not sufficient experience to offer much, 

 but for those who have no better information, the following may be 

 useful. 



It will be found that in a pit from seven to eight feet broad : 



2. 2-inch pipes, are sufficient to produce greenhouse tempera- 

 ture. 



2. 3-inch, for common stove plants. 



2. 4-inch, for Orchidece, and plants requiring the extremest heat 

 that can be produced. 



The results also of the following experiments may be useful as 

 some sort of guide. 



1. A boiler rather less than No. 1. filled with coal and cinders, varied 

 30 gallons, 55 degrees in I hour and 20 minutes, and boiled that 

 quantity in about four hours. 



2. Boiler No 2, raised 40 gallons, 50 degrees per hour, and boiled 

 that quantity in three hours and twenty minutes, the temperature 

 being at 54°. 



C. C. B. 



ARTICLE II. 



ON THE CULTURE OF THE FINK. 



BY MR. THOMAS 1BBETT, MOUNT PLEASANT, BULL FIELDS, WOOLWICH. 



Having in a former number of the Cabinet mentioned that there was 

 gieat room for improvement in the cultivation of pinks, 1 therefore beg 

 to send you my mode of cultivating that beautiful flower, which you 

 would have received before, but circumstances of a domestic nature 

 prevented my attending to it sooner ; in perusing your number for Jan- 

 uary 1837, I find the culture of pinks has been laid down by some 

 one calling himself a practical gardener, and so he may be, and I have 

 known very good practical gardeners possess very little knowledge of 

 growing flowers, and I regret thaj the observations which have been 

 made, are of little or no use to those, who wish to study the cultivation 

 of pinks. As it seems to me a query if the Practical Gardener has ever 

 seen a good bed of pinks, or he would not have written as he has done 

 on the subject. 



