The History of the Royal Society of London/Part 2/Paper 7

by William Brouncker

EXPERIMENTS

Of the Weight of Bodies increased
in the FIRE:

Made at the Tower, and the Account
brought in by my Lord Brouncker.

1. Copper and Lead.
	d.	gr.
The Copel weighed	10	8⁠3/32⁠
Lead	4	9
Copper	0	6
Into the fire all three	14	23⁠2/32⁠
Out of the fire	15	4⁠8/32⁠
Gained	0	5⁠2/32⁠

Besides what the Copel lost in Weight, supposed to be about three Grains.

2. Copper and Lead.
	d.	gr.
Copel	10	2
Lead	4	9⁠3/4⁠
Copper	0	6
Into the fire all three	14	17⁠3/4⁠
Out of the fire	15	1⁠19/32⁠
Gained	0	7⁠27/32⁠

3. Lead alone.
	d.	gr.
Copel	10	3⁠29/32⁠
Lead	4	9
Into the fire both	14	12⁠29/32⁠
Out of the fire	15	14⁠19/32⁠
Gained	0	10⁠22/32⁠

 

4. Lead alone.
	d.	gr.
Copel	10	10⁠7/8⁠
Lead	4	9
Into the fire both	14	19⁠7/8⁠
Out of the fire	15	1⁠5/64⁠
Gained	0	5⁠13/64⁠

 

5. Copel alone.
	d.	gr.
Into the Fire.	10	5
Out of the Fire	10	1⁠3/8⁠
Lost	0	3⁠5/8⁠

 

6. Copel alone.
	d.	gr.
Into the Fire.	10 wanting	7⁠3/4⁠
Out of the Fire	10 wanting	9
Lost	0	1⁠1/4⁠