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- Never-yielding Cement
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- The Three Magical Parties
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- A Water Which Gives Silver A Gold Colour
- Bottles Broken By Air
- Of Gunpowder &c
- A Liquid That Shines In The Dark
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- A Lamp That Will Burn Twelve Months Without Replenishing
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- Inflammable Phosphorus
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- The Leech A Prognosticator Of The Weather
- To Make Squibs And Serpents
- To Give Silver-plate A Lustre
- To Show The Spots In The Sun's Disk By Its Image In The Camera
- To Load Air Balloons With Stars Serpents &c &c When You Fill
- To Find The Difference Between Two Numbers The Greatest Of Which Is
- To Find The Number Of Changes That May Be Rung On Twelve Bells
- To Tell The Number Of Points On Three Cards Placed Under Three
- To Make Any Number Divisible By Nine By Adding A Figure To It
- To Fill A Bladder With Hydrogen Gas
- To Represent Cascades Of Fire
- To Make Several Rockets Rise Together Take Six Or Any Number Of
- To So Fill A Glass With Water That It Cannot Be Removed Without
- To Melt Iron In A Moment And Make It Run Into Drops
- There Must Also Be A Glass Planned To Rise Up And Down In The Groove A B And So Managed By A Cord And Pulley C D E F That It May
- To Extract The Silver Out Of A Ring That Is Thick Gilded So That The
- To Tell How Many Cards A Person Takes Out Of A Pack And To Specify



The Floating Stone








To a piece of cork tie a small stone that will just sink it; and,
putting it in a vessel of water, place it under the receiver. Then
exhausting the receiver, the bubbles of air will expand from its
pores, and, adhering to its surface, will render it, together with the
stone, lighter than water, and consequently they will rise to the
surface, and float.





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