Geology and Natural History. 243 
So they would continue to be if the convenience of botanists 
and the advancement or science only were to be considered. 
But floras are used b to whom even Linnean Latin would 
e a stumbling block ‘Portansealy the difference between good 
octavo volumes. ouchin upon works of special roa 
the Botanical Magazine is justly singled out for prai se, for s 
tained botanical correctness under difficulties, and for its Sage 
influence upon the science 
DeCandolle insists much on the importance of describing and 
well oe the varieties of a species, and of distinguishing 
them as much as possible into gs. such as subspecies or races, 
varieties, subvarieties, &c. We suggest that this can be do 
a deal of verbiage, facilitate ¢ comparison of views, and 
mutual ee Of botanical descriptions | for the pur 
clear is oa otany. May such clearness be hoped for in the 
future ~ histological botany ? 
r XII treats of the unavoidable mixture ‘of artific ial 
petalee 
founded on the mode of curvature of the soem re in rucifere®, 
raised to the rank of primary or subordinal characters nt DeCan- 
olle. Ly poeyny,  Perigyny and epigyny are in the same category, 
and probabl ore sensible of it than Jussieu himself, 
whose point cad fora w the constitution of orders, not their col- 
location under these aitilicial heads. DeCandolle suggests that, 
while to the more natural divisions are appropriated the terms of 
