PROLIFEROUS LEAVES, AND NOTES THEREON. 65 
stoves under glass, from leaf-sections planted edgewise into 
select soil; but in some of these a bulb is first developed, as 
in Dentaria bulbifera. 
Mr. Pricz has repeatedly tried exotic leaves and leaflets 
which exhibited the above character of loose jointing, as if to 
prepare for a separate existence; but quite in vain. And the 
leaves of other cresses, though hardly distinguishable from 
Cardamine pratensis, resist all attempts at instruction in the 
proliferous art. Mr. Pricz not having registered a right of 
patent in the Cuckoo flower business, wishes to share the profits 
with junior partners to any amount: and earnestly invites their 
best exertions for the following purposes :— 
a. To try various ways of promoting this secondary re- 
production, besides floating, submersion, wet blotting paper or 
linen, bottling, and burying; both in the folioles, petioles, and 
stems. ’ 
b. To ascertain the limit of reproduction in terminal and 
lateral folioles ; the smallest size and earliest age capable of this 
process ; the greatest number of quasi-seedlings and of actual 
seedlings from any single plant of Cardamine pratensis. 
ce. To persevere in experimenting on a great variety of 
hopeful or hopeless subjects in this and other genera, carefully 
watching the margin of their leaves. 
d. To compare, from a teleological point of view, the relative 
frequency of this plant and of others not provided with this extra 
mode of multiplication ; and to ascertain whether there be any 
hindrances to the ripening of its seeds or any extra causes of 
their destruction. 
It is to be observed that these germs, excepting the primary 
one at the base, are in no sense even apparently axillary. 
Nor do they (as in Bryophyllum) spring, ready made, “just 
where the seeds would be attached if the leaf were folded into a 
capsule.” The leaf proper, or rather minute portions of it 
(perhaps a single cell of the parenchyma or the woody fibre) 
