62 
GENERAL TREATMENT OF THE GENUS PINUS. 
developments, the auxiliaries of watering and syringing must duly accompany the 
external excitation. No renewal of the manure will be demanded, and its heat 
can be suffered gradually to subside. 
To draw these suggestions for the summer culture of Pelargonia to a close 
without omitting any matter of consequence, we would observe that the growth, 
stimulated as above shown, and which will not be more than three or four 
inches in length, must be partly finished ere winter commences. Every effort 
should therefore be exerted to effect that end. The daily elevation of the frame- 
lights to a degree greater each day than that of the preceding, and, ultimately, 
their complete removal in propitious weather, will soon, and by supportable 
stages, inure them to their advancing torpidity, and impart that consistency 
of frame and substance which is so essential to their maintenance in vigour. 
With the reduction of temperature, there must necessarily be a corresponding 
diminution in the allowance of water ; and this is decidedly the most important 
part of the autumnal treatment. 
We have now to register some information on the winter management and 
propagation of the group ; but as too much room has already been devoted to its 
consideration, these particulars will form the foundation of another paper, to which 
will be appended the notice of other matters referred to at the beginning of the 
former dissertation. 
GENERAL TREATMENT OF THE GENUS PINUS. 
The beauty and value of this deeply interesting tribe have only latterly 
begun to be appreciated in Britain. For many years, our countrymen had 
accustomed themselves simply to regard those vegetable objects ornamental 
which exhibited at some period of their growth a profusion of gaudy blossoms ; 
but this taste is now greatly ameliorated, and symmetry of form, with general 
elegance of habitude, is reckoned a sufficient key to our esteem, particularly with 
evergreens. 
The species of Pinus, considered solely as embellishments of the pleasure- 
grounds, possess much to recommend them to our notice. Their charming, spiry 
shape — airy, graceful, and well-disposed branches — and the pleasing abundance 
and feathery form of their minute, but pretty, and constantly-green foliage, have 
each a claim on our attention, and severally beget those agreeable emotions 
which, when united, constitute the feeling of attachment now almost universally 
evinced. But there is a higher aim to which the introducer and cultivator of 
these noble plants aspires. Large tracts of our favoured father-land are yet 
comparatively waste, from the proceeds of their tillage being inadequate to the 
expenditure ; or, from their peculiar locality and singular soil, altogether for- 
