( 200 ) 
A. Common Spear-Mint^ kC\ 
in Spring-lVater. The Plant 
weighed, when put in July 20. 
juft 27 Grains: when taken 
forth, 05iob. 5. 42 grains. So 
that in this fpacc of 77 days, it 
had gained in weight 15 grains. 
The whole quantity of Wa- 
ter expended, during thefe 77 
days, amounted to 2558 gr. 
Confequently the weight of the 
Water taken up was 170 
times as much as the Plant had 
got in weight, 
B. Common Spear- Mint : Rain\ 
water. The Mint weigh'd, 
when put in, gr, 28 ; when 
taken out gr. 45 1 having gained 
in 77 days gr. 174. 
The difpendium of the Wa- 
ter gr. 3004 which was 1 7 r -|4 
times as much as the Plant had 
received in weight. 
The Wt. 
The Wt. 
The Wt. 
The Wt. 
of the 
of the PI. 
gained by 
>f the 
Plant 
wheo ta- 
the Plant 
Water ex- 
when firfl 
ken again 
during thf 
pended up- 
fct in Wz- 
out of the 
77 d«r9' 
>n the 
Kit 
vvajer. 
rUnt, . 
27 
42 
15 
2553 
C. Common Spear - Mint 
"Thames Water. The Plant 
when put in gr. 28. when ta- 
ken forth, gr. 54, So that in 
77 days \t had gain'd gr. 26. 
The Water expended a- 
mounted to gr. 2493. which 
was 95 W iimts as much as the 
additional weight of the Mint, 
28- 
28 
The Proportion of 
the Encreafe of the 
Plant to the Ex- 
ptace of the Wa- 
ter, 
As I to 1 70 A 
45 
i7i 
54 
26 
3004 
As I to 1 714-^ 
2493 Asit095 * 
D. Common 
