[ 254 ] 
I have dried about two thoufand plants, among 
^vhich are feveral new genera, and fome fpecies hi- 
therto undeferibed. 
I fometimes amufe myfelf with eledlricity. This 
country is fo dry, that the experiments often fucceed 
without any ftand of bitumen, pitch, hlk, glafs,’ &c. 
Our carpets and beavers are moftly fufficient to re- 
tain the eledlrical virtue, and prevent its fpreading to 
the floor. Ten men flanding upright, one before the 
other, have been made eledlrical, and, being touched, 
have produced fparks. 
XLIl. Some Obfervations provings that the , 
Foetus is in part nourifhed by the Liquor 
ydmnii. By Malcolm Fleming, M. D, 
Read Nov. 13. 1 ^Efides the myflerious affair of gene- 
1) ration, befides the manner of the 
formation of the embryo, and the changes it under- 
goes, while it continues extremely fmall, concerning 
all which we fliall ever remain very much in the 
dark ; there are not a few things relating even to 
the mature feetus, which create matter of difpiite 
amongfl; anatomifts and phyfiologifls. Of thefe the 
manner of its nourifhment in ntero is not the leafl; 
important. 
The prefent flate of the controverfy concerning 
this matter turns on the following precife point, to 
wit, whether the foetus in utero be nouriflied folely 
by the blood, which is tranfmitted to it through the 
umbilical 
