300 HORTICULTURAL TOUR. 



Another wall was covered with vines, particularly the va- 

 riety called Fontainebleau. The grapes were not yet ripe, 

 but made such an approach to the state of maturity that 

 there could be no doubt of their attaining it. 



There is a glazed house for forcing grapes, and which 

 contains various sorts of vines ; but all the fruit was, of 

 course, past. This vinery is between fifty and sixty feet 

 long, and is heated by means both of an ordinary brick 

 Hue, and of earthen-ware pipes. The brick-flue passes 

 along the front of the house, raised a little above the floor. 

 The earthen-ware pipes are not conducted nearly on the 

 same level, as is customary, but are led along a plank raised 

 almost to the roof of the house, this kind of support ha- 

 ving the preference, on account of its being a bad conduct- 

 or of heat. The motive for the elevation of these pipes we 

 could not discover ; it being evident, that there is naturally 

 a tendency in the heated air to ascend and to accumulate at 

 the top of the house, without being led thither. The furnace 

 is placed inside the house, and iron- pipes lead from it to those 

 which are of earthen-ware. These earthen-ware pipes much 

 resemble the can-flues described in the Memoirs of the Cale- 

 donian Horticultural Society, (vol. i. p. 65.), excepting that 

 they are a good deal smaller in caliber. Tubes of dimen- 

 sions so confined, indeed, could only be successfully em- 

 ployed where wood is the principal fuel ; they would not 

 answer well, where coal is much used, which yields a great 

 quantity of soot. The vines are planted without, and are 

 managed much in the same way as those described at Vroey- 

 lande (.supra, p. 62.) Sets of branches were now strag- 

 gling on the ground in front of the house : these are to be 

 forced next season ; and those branches which have borne 

 fruit this year, will then be excluded. The objections for- 

 iiicrly stated, likewise occur here; — that there seems to be 



