of wine tube, whose anterior one is inserted into the foramen ; 
nor should I, after what I have already accomplished, despair of dis- 
secting away an unbroken pollen-tube uniting the pollen-grain with the 
peented ovule. ntil my recent examination of Campanula, I had 
no conclusive evidence (after much pains bagi for that 
my observations already published, seemed to justify the 
uch of what had been advanced by previous writers in 
vor of that. pinion. am I have now no hesitation in admitting it as 
proved ; and it only remains to inquire into the mode and extent of 
operation of the polinic. tube, after its introduction to the interior of 
the ovule. 
:* Asa consequence of the theorgs oof Schleiden, it is maintained by 
Basler,’ ere plants have not two sexes, as hitherto supposed ; that the 
a anther, being the male organ, is the female,—in fact, an ovary ; 
i-grain is the germ of a new plant; that the pollinic tube 
:mbryo within the embryo-sac of the ovule, which merely 
to a certain point, to that of animals. They contend 
0-sac, as understood by Schleiden, has no real existence ; 
rimordiale ; 
so may be ex- 
‘the character of 
one of the 
‘simp : 
or the reception o . Brongniart a eeagio 
ht plants, and pariieriagly in the Cucurbitacea, he has a 
