55 ' 
in the Distrihution of' Vegetable Forms, 
t 
and deaths, as daring hypotheses, and as vague, theoretical spe- 
culations, — ^will probably look with contempt on the discussions 
which form the principal object of this memoir. Those, on the 
other hand, who delight to contemplate the mutual concatenation 
of organized beings,— who are aware that the numerical results 
' correct themselves by the accumulation and the careful investi- 
gation of particular facts, — will cherish a kind of research, 
which throws light upon the economy of Nature, — on the con- 
nection which is observed between the climates and the form of 
beings,— on the distribution of plants and of animals in the 
different regions of our planet. It is only by the numerical 
examination and the comparison of species, that we can form a 
correct idea of the state of the vegetation of a given country ; — 
of the general influence which the temperature exercises over 
the frequency of certain forms, near the equator, in the mean 
parallel, and towards the polar circle ; — -of the characteristic fea- 
tures which distinguish, in isotbermal zones, the two systems of 
agroupment of the Old and the New World 
Art. VII. — Notice respecting Roman f Vessels found in Scot- 
land on the Estates of Sir John Hay, Hart 
The two flgures Plate II. Fig. 3. and 4. represent vessels 
found on the estates of Sir John Hay, at Linton and at Eshiels 
in Tweeddale. 
* For the use of such as have net made descriptive botany their particular 
study, and who are yet desirous of acquiring a knowledge of the investigations which 
have been attempted in the different branches of the natural sciences, we shall add 
in this place the names of some of the most common plants which characterise, if 
we may so speak, the tribes or families which are frequently the subject of discus- 
sion in this memoir. (The translation of the following is modified so as to give 
an English reader an idea of the families). Juncece (Rushes) ; Cyperacece (Hard or 
Moor Grasses, Cotton-Grass) ; Graminets (Corn, Grasses) ; Compositce (Dandelion, 
Thistles, Sunflower); LeguminoseB or Papilionacets (Vetches^ Pease, Clover) ; Ru. 
hiaceee (Rennet, Madder) ; EuphorbiaceeB (Sun-spurge, Dogs’ Mercury) ; Labiatoe 
(Mint, Thyme, Rosemary) ; Malvacece (Mallows, Hollyhock) ; UmbelliferoE (Carrot, 
Hemlock, Chervil, Carraway); Cruciferce (Mustard, Cresses, Radish, Turnip). 
The great mass of plants which cover the globe is divided by botanists into 
Phmnogamous (those having visible flowers), and Crpptogamous or Agamous (Ferns, 
Lichens, Mushrooms). 
