ANIMAL REPRODUCTIONS. 387 
ferved, that reprodudtion of the tail is not ac- 
complifhed exaétly in the fame way as that of 
the other members ; it is not announced by a 
papilla rifing in the centre, but by a thin femi- 
tranfparent plate, extending over the whole, or 
moft of the fection, and very much refembling 
an edge-tool in figure. 
From a third fact, it feems to refult, that the 
members replacing thofe mutilated, are not pro- 
perly generated, but that they originally exifted 
in miniature in the great organic whole, and are 
only now unfolded. This we are obliged to ad- 
mit, on confidering that the animal bud is the 
member itfelf, already formed, and requiring 
nothing but fize, {ftrength, and colour, to bring 
it to perfection. Therefore, it is probable that 
the reproduced members pre-exifted in germs of 
exceflive minutenefs, and that all their parts were 
there. ‘The f{pecies, proportion, and pofition of 
thefe, which I may call reprodu-tive germs, re- 
gulate the kind, the manner, and the place of 
reproduction. Here it is needlefs to demonftrate 
how unphilefophical it would be to refort to for- 
mations purely mechanical, for an explanation of 
thefe admirable reproductions. My method of phi- 
lofophifing on this important fubject is known ; 
and it gives me great fatisfaction, that Sig. Spal- 
lanzani’s numerous and beautiful experiments on 
ipfufion animaleula and animal reproduction, 
Bb2 confirm 
