[Jan. 27, 



Mil, and doubtless may give an impetus^' th! 

 treea for a few years, whether of any n ei _r* 



■ ■ ■ 

 it is grown, and vigour of the plant, but I belies 



, paler green. The best soil to grow them in is pm, 

 .eat mould, very sandy ; and when planting or pr.ttinz, 

 ,„t a hamlfol of -silver sand over the bulb beforet£ 

 noold is applied. II. S. Mountjoy, F. H. S., Nur terSt 



gaining ground in this part of the country, and has been 



failed. The opponents of the system have not dealt 

 with it fairly ; they may be compared to jewellers who 



: ■ ■ ones with their dust. Some time ago the West 

 church of Stirling was attempted to be heated, but the 

 plan failed. I may state that the edifice is a massif 

 ■ ■one buii.ling, with stone pillars of great thickness, and 



i, three" roVset inTI -fl 



at salt at the rate of 





i 



and perhaps the church 



A second attempt was 

 Polmaise plau was adopted ; 



Plean House has also been 

 heated by the same plan, and is giving satisfaction; 

 ■i> • !; .u.-e lias also been put up here lately, and I had 

 my choice which mode of heating should be adopted. 

 I preferred the Polmaise, and I have no cause yet to 

 repent of the plan which has been made use of, for the 

 system is working well in the frosty weather we have 

 just experienced, which is more than can be said of a 



have done great things in the way of heating, but it is 

 still many degrees below the mark. Peter Mackenzie. 



relating to Gibraltar, Lisbon, &c, I did not mention 

 the Botanical Garden. I send you the following ex- 

 tract from a letter giving an account of this. Dodman. 

 " Jan. 7.— I wish 1 had had the showing of Lisbon to 

 jou, for I saw yesterday almost the only thing that 



Botanical Garden, whichyoudtd not see°; it is near the 



the garden should be so damp and the walks covered 

 with moss. The situation is magnificent. The garden 

 in excellent Italian style, and just such as I had 'seen 

 in my dreams ' from Beckford's descriptions ; not the 

 worse for being in parts totally neglected, because these 

 parts are filled with various sorts of Palm and other 



Braganct Hotel, and stands exactly the same; the 

 upper part (a noble terrace, with splendid balustrade) 

 stands as / do, high above the lower part, in which the 

 Palms grow. You ascend beautiful flights of steps i» 



in both divisions; at the ba'ck°of th? terrace are the 

 houses. The famous Bougainvillea was out of flower, 

 but it is the plant we saw covering the back of that 

 great Pine-house at Count Farobo's. The garden is fall 



:•:'.'.-:' - ' ■ 



.■ ; '.;•.■ . ■-■■■. ^... - ,... :.- . i . "■-' 



. mtic succulent plant under which* 



in- an E^thrin ^ * fl ° Wer ' • ^ ** ' ^"ifs 



™ colu^lO^nr'l^ nigh 



■ < > ' ■ ik - mber.^ In bado. s_Alue* This is a pest here, where it ^8 rootr 



s of the Dragon tree, and sha» 

 The houses are in the woij 



Vi.:' 



