THEORY OF RAIN. 
271 
Impletion by the disk, is when there is no multiplication of the 
radius, but the corollulae of the disk, run out into length, and have 
their brims less divided. In radiate flowers, it will so far affect the 
radius, as to change its flowers from ligulate to tabulose, as in Bei¬ 
lis. In ligulate flowers, their impletion is by the lengthening of the 
stigmata, and the enlarging and diverging of the germina, by which 
augmentations the full flowers are distinguished from the natural 
ones, as in Scorzonera. 
3. Proliferous. When one flower grows out of another, it is cal¬ 
led proliferous; this generally happens in full flowers, the fulness 
being the cause of their becoming proliferous, Prolification happens 
two ways, viz. : 
1, From the centre, which happens in simple flowers ; that is, when 
the pistillum shoots up into another flower, standing upon a single 
peduncle, as in Dianthus, Ranunculus, and others. 
2 . From the side which happens in aggregate flowers, that is, 
when manjr pedunculate flowers are produced out of one common 
calyx, as in Beilis, Calendula, Scabiosa, &c. 
In umbellate flowers, the prolification is by the increase of the 
umbellulae, one simple umbellula producing another, as in Cornus. 
Compound, (more than compounded a second time,) as in Selinum, 
A proliferous flower is called Foliaceous, (leafy) when it produces 
leaves, (but which seldom happens,) as in Rosa, Anemone, &c, 
4. Mutilate flowers are the reverse of luxuriant; this term applies 
to flowers that want the corolla, though they ought to be furnished 
with it, as in Ipomea, Viola, Ruellia, &c. 
(To be Continued.) 
F. F, Ashford, 
Mere Hall, Cheshire. 
ARTICLE VIII. 
ON THE THEORY OF RAIN.— By Nil Desperandum. 
A Correspondent of the Field Naturalists’ Magazine, in an arti¬ 
cle quoted in your Register, has undertaken to refute the established 
theory of the formation of rain. 
That what he gives as such, is the established theory, I deny ; 
and I have given one of the many received ones in the following an¬ 
swer to his first objection. 
For the first objection, viz.: <f that water requires a heat of 60 degs, 
