[ 2S8 ] 
J. Letter of Sir F. H. E. Styles, F. R. S. to Daniel 
. Wray, Efquire, F, R. S. on the Sexes of Plants, 
• Naples^, December 29, 1761. 
S I R, 
ReadDec. I2,y Enclofe you Profeflbr Cyrillo’s draw- 
A ings of the objedls lately viewed with 
the microfcopes of Padre di Torre, which he de- 
iires may be prefented with his refpeds to the Royal 
Society. The explanation I have annexed of the 
figures, will in fome meafure fliew how they lerve 
^to confirm the remarks I fent you on the impregnation 
of vegetables. However, that our reflexions on this 
fubjeX may receive a more methodical fupport from 
them, I enclofe you another copy of the remarks, 
with numeral references to thofe figures, that ferve 
to verify the account given of the particular appear- 
ances, which 1 was obliged to omit in the firfl; copy, 
as the figures had not been then ranged and num- 
bered. 
In my letter of the i6th of November, accom- 
panying thefe remarks, fpeaking of the clafs Dicecia, 
I faid, that there mufi: in this clafs be fome original 
difference, either between the corpufcles which pro- 
duce the male plants, and thofe which produce the 
female ones, or between the refpeXive ova which re- 
ceive them : a further refleXion fince upon the fubjeX 
has led me to doubt whether there is a necefiity for 
fuch fuppofition, there occurring to me another way 
of 
