an extraordinary Pheafant. 529 
two parts in one animal body, producing an animal 
called an unnatural hermaphrodite (a> . 
It is my intention at prelent to extend my inquiry on 
this fubject no farther than as to what relates to that re- 
femblance which one fex bears to that of another in 
thofe diflinguilhing properties which I term fecondary. 
The common clafs of unnatural hermaphrodites ap- 
pear to be governed by certain laws, by which fuch an 
extraordinary formation of parts is effected; for it is ob- 
fervable, that thefe deviations obtain through whole 
fpecies of animals precifely in the fame manner. I have 
given an account of the Free- martin in a paper already 
prefented to this Society. This hermaphrodite exhibits 
a mixture of the two parts of generation in the fame 
animal. 
1 
But we find, however, that there is often a change of 
the fecondary properties of one fex into another, the 
female now and then affirming the peculiarities of the 
male with refpedt to the fcondary properties; and I may 
obferve, that fome daffies are more fubjedt to this than 
others ; a Angular example of which is to be the fubjecl 
of the following paper. 
Here I beg leave to premife, that in all animals of no 
diftindt fex, there is no alteration taking place in their 
(a) Vide Phil/ Tranf. vol. LXIX. part L 
form 
