368 M E M O I R S ?/ //6f 
with a hole of the lame bignels as the other phials; in this hole 
lie lufpended a bit of ftick about the thicknefs of the Item of one 
of the aforefaid plants, but not reaching down to the furface of 
the included water, he put them in thus, that the water in thole 
mipht not have more icope to evaporate than that in the other 
phials; thus they flood in the fame window with the reft for 77 
days, when upon examination he found none of the water in thefe 
either wafted or evaporated, tho* he obferved both in them and 
in the reft, elpecially after hot weather, fmall drops of u'ater, 
not unlike dew, adhering to the infide of the phials, viz. that 
part of them that was above the furface of the encloled watery 
at the end of the experiment, the water in thefe two glalTes that 
had no plants in them, exhibited a larger cjuantity of terreftrial 
matter, than any of thofe that had plants in them, the lediment 
at the bottom of the phials being greater and the Nubecula? , dif- 
fufed thro' the body of the water, being thicker ; and lome of 
that which was in the others proceeded from certain fmall leaves 
that had fallen from that part of the ftems of the plants that was 
within the water, where they rotted and diffolved ; the terreftrial 
matter in the rain-water was finer than that in the fpri^g- water. 
The Doctor repeated the experiment, where the plants were all 
Ipear-mint, the moft kindly, frefh and fprightly /hoots he could 
choofe ; the water and the plants were weighed as above, and the 
phials were fet in a line in a window facing the Ibuth, where 
they ftood from Jfune 2d, to ^uly 28th, which was juft ^6 days. 
Di/iinc- 
Wt. of Ptanis\Weight 
Ex- 
Proportion of the 
tion of 
T^he f&veral Sorts 
zuhen 
zvhen \iained 
pence 
Growth of the 
the 
of Waters 
put 
taken 
!/; 56 
ofWa 
Plant to the Ex- 
Phiah. 
in. 
out 
Days. 
ter. 
pence of WiHer 
g^' 
gr- 
gr- 
gr- 
H. 
Hyde-park Conduit Water. 127 
225 
128 
14190 
I, to no H^ 
I. 
Hyde-park Conauit Water] no 
249 
139 
13140 
I. to 94 ,f^ 
K. 
Hyde -park Conduit Watery\ 
in which was diffoWd an 
Ounce and a half of com- 
mon Garden Earth. 
76 
244 
168 
10731 
I, to 63 ^^ 
L. 
Hyde- park Water . with the 
fame ^antity of Garden 
I. to 52ffa 
Mould as in the former. 
92 
3/6 
284 
14950 
M. 
Hyde -park Water dijlilled 
off with a gentle Still. 
114 
i5s 
4» 
8803 
1, to 214 l^ 
N. 
Refdue of the Water lohich 
remained in the Still after 
that in M.zoas dijlillcdoff. 
. 81 
175 
94 
J3j44 
i,/^46}5 
The 
