THE GARDENERS' CHRONICLE. 



OF LONDON 



H- ' , 





red the following commi 

 , at Heckfield, and we en- 



The above Potatoes we: 



I, and was going on as i 



-was 80. One 

 aery that I 



a placed in a new pit heated 



ikiug-up time were of the 

 laid out to green, a practice 



Anciently niani 



IJJtfe new tone which has been taken bv some 

 *™«pon it For ourselves we cannot but 



-« v. an sons, in the 

 hie ground. Although 



hreadbare in ord< 



ind shall be taken, even although 





-curr fd ' stribu,in 



deserves the 1 



.■>■■:•-!■.; I,;: 



'> concetve how a system 

 *CL toD,Can bethe° m!^ air ince ^antly iu 

 VfcT «"*«* are » G ^ ° ne 0f which only 

 »*tfcj e r rceiv ethe P a "? CeSSar ^ consequence. 

 *2rr h eati nf /bv 1 Ct rese "»blance between 

 SL?. 1 " w hieh ri up m s ea " S of flues > and another 



t, and carrying it off by their interior ; that wa 

 ir worst fault. But was it on that accoun 

 i they were rejected ? We submit, not. Whei 



stable lite as warmth ; some have not found 

 out even yet. Hygrometers were notgan 

 uments. Nor was it till long after the y 

 1 that this w&s generally known. Science 1 



of the faults of flues, b 



l great dryness and 

 pnal definition of i 



I flues did, it is not its 



al cause of the rejection of fh 



rstly the cleaning and re] 



was twofold ; 

 condly, they were liable to 



Lhlht 1 "" 



or to explode — evils from 



paratus is wholly exempt. Mr. Meek has by no 



means overlooked this difficulty ; on thi 



he has addressed himself to it in the 



" Having noticed the advantages of Polmaise 

 heating, 1 have no wish to conceal ; 



iples of Nature, and when 

 he reduces them to practice, he finds that he has 



use. A boiler may burst, or a pipe 

 th a hot-water apparatus, and a gaseous 



may escape from the stove of Polmaise. 

 The compounds of sulphur aud oxygen appear, even 

 when much diluted, most prejudicial to vegetable 

 life, and the effects of the bursting of a flue are 



phesy that no winter, however severe. 



gtkej but all the beauty of 



may employ the Polmaise principle to be ex- 

 tremely particular in the manner in which the 

 stove ia bttih. Let the outside be parged ; let it 



• 



"nr 



ing should be lost for want of some ingenious me- 



ever, I have thought it mv especial duty to point 

 out the weak points of Polmaise ; and while I ac- 

 knowledge that I think the form of stove I have 

 employed has many advantages, and W 

 retention of the heat, I by no means wish to ; re- 

 vent others of a more complex and expensive, 

 though probable of a more powerful char-icter, 

 being employed." 



This i* one of the chances against Polmaise. 

 But we see no reason to i 



■ 

 where employed, are well secured by a rebate deep 

 enough, and*// a current of air is obliged to pass 



r over the fuel the gaseous i 

 on are carried up the chimne 

 rmed ; it is only when these 



jhl perhaps and 



possible but prt 

 precaution, and s 



r ot mel which is theoretically 

 ically unimportant. With this 

 :h an apparatus as Messrs. Bun- 

 have last advertised, gaseous 



ere well built and well managed 



stove and its doors are plaa d iN?iot 



not learn distinctly by what means. To be sure it 

 w sHeged I ,r we hardly 



know the preei.se meaning of tiiis word burnt. If it 



10 much of the oxygen ot the air as to 



It for the respiration of 



till beg to express our doubts of any 



temperature as would produce this effect could only 



>ie to get the 

 i a : l it, oi near it, if the circula- 



maise. It is further pretended that carbonic acid 

 is to be generated by some mysterious process. 



1 • 

 i.: -;:\ :-::.-.; .■.';-.-■.■;• ;■:-,.-. • 



posing that this carborjic acid were formed. But 



week (see p. 38). Then there is T ' 

 of water by passing over hot pi 



Pruning the Pear-Trek may be i 



esee the probable consequences of every cut that 

 made. When left to its natural growth, the 

 ar-tree, generally s| leaking, aspires to a height 



eir bases. Ultimately the top is formed of a 

 undish, spreading, or pyramidal form, on the out- 



d hence it . cc.rpies the b< >t •>■ mi:, u < r enjovin : 

 ebctti i ii ' es, hirht and air 

 An example will put in a clear light the necessity 

 studying the natural disposition of this tree. 

 ippose a person were required to keep a tree 



tural height, and that, regardless of its incessant 

 ridency to attain that height, he cut annually with 

 ference merely to the assigned limits. Year after 



shoots disposed to mount as stems, and he might 



These 



;ellWM maise un der 



fis nf p :,? position - 



evi13 of the old flues 



is done at some sacrifice of fuel, b 

 of no real importance ; and, in fa< 



ot such accidents arises from an cm 

 i theoretical quantities of coal. I' 



? They | „T .KSJj; 





