90 
APPENDIX. 
organs both of plants and of animals. The male or- 
gans are then taken up as a distinct subject, first in 
plants and then in animals, both at the times in which 
they do not breed, and in the breeding season, to 
shew their different states. To these are added a 
number of parts which answer secondary purposes 
in generation, and may be considered as appendages. 
The female organs are next exhibited in the maiden 
state, in every class of animals, demonstrating the 
shape and length of the oviducts, the form of the 
uterus, the length of its horns, with the varieties in 
their structures, and tlie instances in which these 
horns are entirely wanting, as in some monkeys ; to 
which are added other peculiarities of structure. 
They are then exemplified in the impregnated state, 
beginning with the seeds of vegetables, and those 
which have both seeds and young shoots, as the 
onion. The eggs of insects follow next, with their 
changes, particularly the silk-worm. The spawn of 
fish are next shewn, first in those which have eggs> 
and then in those which have their eggs hatched in 
the oviducts, as the dogfish. 
The airangement then proceeds to the formation 
and incubation of the egg in the fowl, and the pro- 
cess of fmtation in the quadruped, with their pecu- 
liarities, and the different structures and appearance* 
of the placenta. Added to these are the peculiari- 
ties of the fcetus, and the different modes by which 
the mother gives nourishment to her young. 
Besides the preparations of the parts themselves 
